user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: A part of NATO, which country has an iso alpha 3 of BGR? 
Knowledge Triplets: Portugal, military.military_combatant.belongs_to_combatant_group, Triple Entente
World Trade Organization, organization.organization.founders, Norway
France, common.topic.notable_types, Country
m.03w6012, organization.organization_membership.member, Germany
Flag of NATO.png, common.topic.article, m.02h795q
Belgium, military.military_combatant.belongs_to_combatant_group, Allies of World War I
m.07y5nn3, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.0gv466r
United Kingdom, organization.organization_founder.organizations_founded, Council of Europe
Belgium, military.military_combatant.belongs_to_combatant_group, Triple Entente
Council of Europe, organization.organization.founders, Italy
North Atlantic Treaty Organization (NATO), book.author.works_written, NATO basic documents
m.0bhg3qb, military.military_combatant_group.combatants, Kingdom of Greece
Denmark, base.locations.countries.continent, Europe
Western Europe, location.location.partially_contains, Netherlands
North Atlantic Treaty Organization (NATO), organization.organization.founders, Italy
Poland, military.military_combatant.military_conflicts, m.04g9ysp
Allies of World War II, military.military_combatant.includes_allies, United Kingdom
Europe, organization.organization_scope.organizations_with_this_scope, Amasyn
North Atlantic Treaty Organization (NATO), book.author.works_written, Mission plan
The North Atlantic Treaty Organization, book.written_work.author, North Atlantic Treaty Organization (NATO)
World Trade Organization, organization.organization.founders, Luxembourg
European Union, organization.organization.founders, France
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y5v4_
Bulgaria, base.locations.countries.continent, Europe
North Atlantic Treaty Organization (NATO), book.author.works_written, Aircraft fire safety
France, organization.organization_founder.organizations_founded, United Nations
United Nations, organization.organization.founders, Netherlands
North Atlantic Treaty Organization (NATO), book.author.works_written, NATO agreements on status: travaux préparatoires
France, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), book.author.works_written, NATO, the first five years, 1949-1954
European Union, organization.organization.founders, Belgium
m.03wyt_4, organization.organization_membership.organization, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), common.topic.webpage, m.0b6s1_7
m.0ggg3qv, military.military_combatant_group.combatants, Kingdom of Greece
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y5yss
UNESCO, organization.organization.founders, United States of America
North Atlantic Treaty Organization (NATO), common.topic.notable_for, g.1258dv3b1
Portugal, common.topic.notable_types, Country
m.04g9k0w, organization.organization_membership.organization, North Atlantic Treaty Organization (NATO)
Italy, base.locations.countries.continent, Europe
United States of America, military.military_combatant.belongs_to_combatant_group, Allies of World War II
Groundwater and Ecosystems, book.written_work.author, North Atlantic Treaty Organization (NATO)
m.0bhf73c, military.military_combatant_group.combatants, Kingdom of Greece
NATO 1949 - 1999 OTAN, book.written_work.author, North Atlantic Treaty Organization (NATO)
NATO agreements on status: travaux préparatoires, common.topic.notable_for, g.1255ym_zs
The Dawn of Peace in Europe, book.written_work.subjects, North Atlantic Treaty Organization (NATO)
m.07y5dhg, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
m.0bhg7bw, military.military_combatant_group.combatants, Kingdom of Greece
Triple Entente, military.military_combatant.includes_allies, Italy
World Trade Organization, organization.organization.founders, Denmark
NATO bombing of Yugoslavia, military.military_conflict.combatants, m.07y5ffx
Operation Deny Flight, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
United Nations, organization.organization.founders, Denmark
m.07y5v4_, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
France, base.locations.countries.continent, Eurasia
Canada, common.topic.notable_types, Country
Portugal, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), book.book_subject.works, The Dawn of Peace in Europe
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y5dhg
m.0bd40bv, military.military_combatant_group.conflict, Serbian-Albanian conflict
North Atlantic Treaty Organization (NATO), common.topic.article, m.059dz
m.0wgg8pz, military.military_command.military_combatant, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization Summit in Chicago in 2012, common.topic.notable_types, Produced event
United Kingdom, military.military_combatant.belongs_to_combatant_group, Allies of World War I
North Atlantic Treaty Organization (NATO), common.topic.notable_types, Membership organization
Western Europe, location.location.contains, Germany
North Atlantic Treaty Organization (NATO), organization.organization.founders, Belgium
Council of Europe, organization.organization.geographic_scope, Europe
Poland, military.military_combatant.military_conflicts, m.048z_dd
m.03z967f, military.military_combatant_group.combatants, Belgium
Belgium, organization.organization_founder.organizations_founded, European Union
m.0gv466r, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
United Nations, common.topic.notable_types, Membership organization
North Atlantic Treaty Organization (NATO), event.event_producer.events_produced, North Atlantic Treaty Organization Summit in Chicago in 2012
Northern Europe, location.location.contains, Norway
Canada, organization.organization_founder.organizations_founded, UNESCO
Luxembourg, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
Council of Europe, organization.organization.founders, Denmark
m.048z_dd, military.military_combatant_group.combatants, Belgium
Europe, base.locations.continents.countries_within, Norway
UNESCO, organization.organization.founders, France
United Kingdom, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
Germany, location.country.currency_used, Euro
m.03wyt_4, organization.organization_membership.member, Bulgaria
North Atlantic Treaty Organization (NATO), military.military_combatant.military_commanders, m.0wgg8pz
Council of Europe, organization.organization.founders, United Kingdom
Nordic countries, location.location.contains, Denmark
United Nations, organization.organization.founders, France
m.07y6s95, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
m.02hv_0l, aviation.aircraft_ownership_count.aircraft_owner, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), organization.membership_organization.members, m.04jsm49
Poland, organization.organization_founder.organizations_founded, United Nations
Norway, organization.organization_founder.organizations_founded, UNESCO
North Atlantic Treaty Organization (NATO), military.military_combatant.includes_allies, Kingdom of Greece
North Atlantic Treaty Organization (NATO), organization.organization.founders, Portugal
UNESCO, organization.organization.founders, Denmark
m.03w6017, organization.organization_membership.member, Poland
United States of America, base.locations.countries.continent, North America
Country, freebase.type_profile.strict_included_types, Location
nato, internet.top_level_domain.sponsor, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), book.author.works_written, Bibliographie
North Atlantic Treaty Organization (NATO), book.author.works_written, Groundwater and Ecosystems
Norway, common.topic.notable_types, Country
North America, location.location.partially_contains, France
NATO basic documents, book.written_work.author, North Atlantic Treaty Organization (NATO)
Amasyn, organization.organization.geographic_scope, Poland
North Atlantic Treaty Organization (NATO), base.ontologies.ontology_instance.equivalent_instances, m.07nff1w
Allies of World War II, military.military_combatant.includes_allies, United States of America
Western Europe, location.location.contains, France
Operation Mistral 2, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
United Nations, organization.organization.founders, Luxembourg
Allies of World War I, military.military_combatant.includes_allies, Belgium
Council of Europe, organization.organization.founders, Belgium
European Union, organization.organization.founders, Germany
World Trade Organization, organization.organization.founders, Germany
North Atlantic Treaty Organization (NATO), organization.organization.founders, Norway
Operation Deliberate Force, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
Kingdom of Greece, military.military_combatant.belongs_to_combatant_group, North Atlantic Treaty Organization (NATO)
Portugal, base.locations.countries.continent, Europe
The signing of the North Atlantic treaty, book.written_work.author, North Atlantic Treaty Organization (NATO)
m.0hvygw0, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
Germany, common.topic.notable_types, Country
Allies of World War II, military.military_combatant.includes_allies, Kingdom of Greece
UNESCO, organization.organization.founders, United Kingdom
World Trade Organization, organization.organization.founders, Belgium
United Nations, organization.organization.founders, United States of America
Italy, common.topic.notable_types, Country
Germany, location.country.form_of_government, Constitutional republic
United States of America, organization.organization_founder.organizations_founded, UNESCO
Allies of World War I, military.military_combatant.includes_allies, Portugal
North Atlantic Treaty Organization (NATO), organization.organization.founders, Canada
Europe, base.locations.continents.countries_within, Luxembourg
North Atlantic Treaty Organization (NATO), business.employer.employees, m.046w6y3
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y6s95
North America, base.locations.continents.planet, Earth
m.07nff1w, base.ontologies.ontology_instance_mapping.freebase_topic, North Atlantic Treaty Organization (NATO)
France, organization.organization_founder.organizations_founded, European Union
Europe, base.locations.continents.countries_within, Portugal
m.03z967f, military.military_combatant_group.combatants, France
Allies of World War II, military.military_combatant.includes_allies, France
m.07y661_, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
Italy, military.military_combatant.belongs_to_combatant_group, Triple Entente
Denmark, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
Triple Entente, military.military_combatant.includes_allies, United Kingdom
m.03z967f, military.military_combatant_group.combatants, United States of America
North Atlantic Treaty Organization (NATO), business.employer.employees, m.046w6xq
Council of Europe, organization.organization.founders, Luxembourg
Country, freebase.type_hints.included_types, Topic
Europe, base.locations.continents.countries_within, United Kingdom
Western Europe, location.location.contains, United Kingdom
United States of America, base.biblioness.bibs_topic.is_really, United States of America
Europe, base.locations.continents.countries_within, Iceland
Luxembourg, organization.organization_founder.organizations_founded, European Union
North Atlantic Treaty Organization (NATO), organization.organization.leadership, m.0w8w287
Flight test techniques, book.written_work.author, North Atlantic Treaty Organization (NATO)
Southern Europe, location.location.partially_contains, Portugal
United Nations, organization.organization.founders, Norway
Phytoremediation of Metal-Contaminated Soils, book.written_work.author, North Atlantic Treaty Organization (NATO)
European Union, organization.organization.founders, Netherlands
Europe, base.locations.continents.countries_within, Belgium
North Atlantic Treaty Organization (NATO), book.author.works_written, Phytoremediation of Metal-Contaminated Soils
Nato advanced study institutes, 1974 =, common.topic.notable_for, g.125bk0swv
NATO and the Warsaw Pact, common.topic.notable_types, Book
North Atlantic Treaty Organization (NATO), freebase.valuenotation.is_reviewed, Official website
North Atlantic Treaty Organization (NATO), book.author.works_written, NATO 1949 - 1999 OTAN
Poland, organization.organization_member.member_of, m.03w6017
United Nations, organization.organization.founders, Canada
Luxembourg, organization.organization_founder.organizations_founded, United Nations
Belgium, military.military_combatant.military_conflicts, m.03z967f
North Atlantic Treaty Organization (NATO), common.topic.webpage, m.03l8c0f
Canada, base.locations.countries.continent, North America
North Atlantic Treaty Organization (NATO), book.author.works_written, NATO handbook
United Kingdom, organization.organization_founder.organizations_founded, World Trade Organization
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y5bnr
Norway, base.locations.countries.continent, Europe
Iceland, base.locations.countries.continent, Europe
Netherlands, common.topic.notable_types, Country
Belgium, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
m.07y5bnr, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y5nn3
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y7k_j
Germany, military.military_combatant.military_conflicts, m.03z967f
North Atlantic Treaty Organization (NATO), book.author.works_written, Functional Properties of Nanostructured Materials
m.0422h__, common.webpage.topic, North Atlantic Treaty Organization (NATO)
Nato advanced study institutes, 1974 =, book.written_work.author, North Atlantic Treaty Organization (NATO)
France, military.military_combatant.belongs_to_combatant_group, Allies of World War II
World Trade Organization, organization.organization.founders, Netherlands
North Atlantic Treaty Organization (NATO), common.topic.webpage, m.0422h__
United Kingdom, organization.organization_founder.organizations_founded, United Nations
Bulgaria, organization.organization_member.member_of, m.03wyt_4
m.04g9ysp, military.military_combatant_group.combatants, Poland
North Atlantic Treaty Organization Summit in Chicago in 2012, event.produced_event.produced_by, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07vjs3f
United Nations, organization.organization.founders, United Kingdom
nato, common.topic.notable_for, g.12551_vx9
Italy, organization.organization_founder.organizations_founded, European Union
United Kingdom, organization.organization_member.member_of, m.04jsm49
m.03z967f, military.military_combatant_group.combatants, United Kingdom
North Atlantic Treaty Organization (NATO), internet.top_level_domain_sponsor.domains, nato
NATO handbook, common.topic.notable_types, Book
Council of Europe, base.nations.supranational_body.member, France
North America, base.locations.continents.countries_within, United States of America
m.0b6s1_7, common.webpage.topic, North Atlantic Treaty Organization (NATO)
m.03wzc6t, organization.organization_membership.organization, North Atlantic Treaty Organization (NATO)
Belgium, location.country.capital, Brussels
NATO bombing of Yugoslavia, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
Plans and developments for air traffic systems, book.written_work.author, North Atlantic Treaty Organization (NATO)
Netherlands, base.locations.countries.continent, Europe
European Union, organization.organization.founders, Luxembourg
NATO basic documents, common.topic.notable_types, Book
United Nations, organization.organization.founders, Belgium
World Trade Organization, organization.organization.founders, United Kingdom
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y5ffx
Operation Active Endeavour, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), book.author.works_written, Plans and developments for air traffic systems
NATO and the Warsaw Pact, common.topic.notable_for, g.125cr6f2x
Triple Entente, military.military_combatant.includes_allies, Belgium
Germany, location.country.form_of_government, Parliamentary republic
Germany, location.location.containedby, Western Europe
United States of America, common.topic.notable_types, Country
Western Europe, location.location.partially_contains, France
North Atlantic Treaty Organization (NATO), aviation.aircraft_owner.aircraft_fleet_composition, m.02hv_0l
United States of America, base.locations.countries.planet, Earth
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.0bd40bv
North America, location.location.partially_contains, United States of America
Northern Europe, location.location.contains, Iceland
m.04jsm49, organization.organization_membership.member, United Kingdom
Functional Properties of Nanostructured Materials, book.written_work.author, North Atlantic Treaty Organization (NATO)
m.07vjs3f, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
m.04g9ysp, military.military_combatant_group.combatants, Belgium
North Atlantic Treaty Organization (NATO), book.author.works_written, Flight test techniques
Automatic translation of languages, book.written_work.author, North Atlantic Treaty Organization (NATO)
UNESCO, organization.organization.founders, Canada
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.0hvygw0
Europe, base.locations.continents.countries_within, Italy
m.07y5yss, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
m.0bhf9yq, military.military_combatant_group.combatants, Kingdom of Greece
North Atlantic Treaty Organization (NATO), organization.membership_organization.members, m.03wyt_4
nato, internet.top_level_domain.status, Discontinued
North Atlantic Treaty Organization (NATO), organization.organization.founders, France
North Atlantic Treaty Organization (NATO), organization.membership_organization.members, m.03w6017
European Union, common.topic.notable_types, Membership organization
France, military.military_combatant.belongs_to_combatant_group, Triple Entente
Europe, base.locations.continents.countries_within, Poland
The North Atlantic Treaty Organization, common.topic.notable_types, Book
Europe, location.location.partially_contains, France
France, base.locations.countries.planet, Earth
NATO basic documents, common.topic.notable_for, g.1256fvj3v
North America, base.locations.continents.countries_within, Canada
North Atlantic Treaty Organization (NATO), book.author.works_written, Nato advanced study institutes, 1974 =
North Atlantic Treaty Organization (NATO), book.author.works_written, Automatic translation of languages
Belgium, organization.organization_founder.organizations_founded, United Nations
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y661_
m.0bhdc3g, military.military_combatant_group.combatants, Kingdom of Greece
Europe, base.locations.continents.countries_within, Germany
nato, common.topic.notable_types, Top Level Domain
NATO, the first five years, 1949-1954, book.written_work.author, North Atlantic Treaty Organization (NATO)
Portugal, military.military_combatant.belongs_to_combatant_group, Allies of World War I
NATO 1949 - 1999 OTAN, common.topic.notable_types, Book
Germany, base.locations.countries.continent, Europe
North Atlantic Treaty Organization (NATO), book.author.works_written, Defense communications
Germany, organization.organization_founder.organizations_founded, World Trade Organization
Country, freebase.type_profile.strict_included_types, Topic
United States of America, organization.organization_founder.organizations_founded, World Trade Organization
Germany, organization.organization_member.member_of, m.03w6012
m.048z_dd, military.military_combatant_group.combatants, Poland
Council of Europe, common.topic.notable_types, Membership organization
Germany, location.location.containedby, Europe
France, organization.organization_founder.organizations_founded, UNESCO
NATO 1949 - 1999 OTAN, common.topic.notable_for, g.125b6c99n
Mission plan, book.written_work.author, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), organization.organization.founders, United States of America
North Atlantic Treaty Organization (NATO), freebase.valuenotation.is_reviewed, Date founded
United Kingdom, military.military_combatant.belongs_to_combatant_group, Triple Entente
Belgium, organization.organization_founder.organizations_founded, World Trade Organization
United States of America, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
nato, common.topic.article, m.05gp91
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.0bf4p91
Aircraft fire safety, book.written_work.author, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), common.topic.image, Flag of NATO.png
Northern Europe, location.location.contains_major_portion_of, Nordic countries
Northern Europe, common.topic.notable_types, Location
United Kingdom, military.military_combatant.belongs_to_combatant_group, Allies of World War II
m.07y5ffx, military.military_combatant_group.conflict, NATO bombing of Yugoslavia
Triple Entente, military.military_combatant.includes_allies, France
Poland, common.topic.notable_types, Country
North Atlantic Treaty Organization (NATO), book.author.works_written, Combustion and fuels in gas turbine engines
North Atlantic Treaty Organization (NATO), business.employer.employees, m.04kc73_
Western Europe, location.location.contains, Belgium
Iceland, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
World Trade Organization, organization.organization.founders, Canada
Combustion and fuels in gas turbine engines, book.written_work.author, North Atlantic Treaty Organization (NATO)
Operation Ocean Shield, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
Defense communications, book.written_work.author, North Atlantic Treaty Organization (NATO)
Europe, base.locations.continents.countries_within, Bulgaria
North Atlantic Treaty Organization (NATO), aviation.aircraft_owner.aircraft_fleet_composition, m.02hv_hh
Poland, location.location.containedby, Europe
m.03w6012, organization.organization_membership.organization, North Atlantic Treaty Organization (NATO)
Luxembourg, base.locations.countries.continent, Europe
North Atlantic Treaty Organization (NATO), organization.organization.founders, Denmark
Europe, organization.organization_scope.organizations_with_this_scope, Council of Europe
NATO agreements on status: travaux préparatoires, book.written_work.author, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), base.schemastaging.context_name.pronunciation, g.125_pvr5s
United Kingdom, organization.organization_founder.organizations_founded, UNESCO
European Union, organization.organization.founders, Italy
United States of America, freebase.valuenotation.is_reviewed, Official website
United States of America, organization.organization_member.member_of, m.03wzc6t
m.0w8w287, organization.leadership.organization, North Atlantic Treaty Organization (NATO)
Kingdom of Greece, military.military_combatant.military_conflicts, m.0bx0hy5
m.0bd40bv, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
m.07y7k_j, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
Nordic countries, location.location.primarily_containedby, Northern Europe
Belgium, organization.organization_founder.organizations_founded, Council of Europe
UNESCO, organization.organization.founders, Norway
Bulgaria, military.military_combatant.belongs_to_combatant_group, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), organization.organization.headquarters, m.04300hm
North Atlantic Treaty Organization (NATO), organization.organization.founders, Iceland
Nordic countries, location.location.contains, Iceland
Italy, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
Northern Europe, location.location.contains, Denmark
NATO, the first five years, 1949-1954, common.topic.notable_for, g.125cpz49_
Flag of NATO.png, common.image.size, m.0kkm4k
m.0bx0hy5, military.military_combatant_group.combatants, Kingdom of Greece
m.03w6017, organization.organization_membership.organization, North Atlantic Treaty Organization (NATO)
Western Europe, location.location.contains, Luxembourg
m.02hv_hh, aviation.aircraft_ownership_count.aircraft_owner, North Atlantic Treaty Organization (NATO)
Allies of World War I, military.military_combatant.includes_allies, United Kingdom
World Trade Organization, organization.organization.founders, United States of America
The North Atlantic Treaty Organization, common.topic.notable_for, g.125cpz4n0
Europe, base.locations.continents.countries_within, Denmark
World Trade Organization, organization.organization.founders, Portugal
North Atlantic Treaty Organization (NATO), organization.membership_organization.members, m.04g9k0w
North Atlantic Treaty Organization (NATO), freebase.valuenotation.is_reviewed, Social media presence
North Atlantic Treaty Organization (NATO), military.military_combatant.includes_allies, Bulgaria
Belgium, common.topic.notable_types, Country
United Kingdom, location.location.containedby, Western Europe
Allies of World War I, military.military_combatant.includes_allies, Kingdom of Greece
m.03wzc6t, organization.organization_membership.member, United States of America
Canada, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
Southern Europe, common.topic.notable_types, Location
North Atlantic Treaty Organization (NATO), military.military_combatant.military_conflicts, m.07y862p
Kingdom of Greece, military.military_combatant.military_conflicts, m.0bhg3qb
Operation Kamin, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), book.author.works_written, The North Atlantic Treaty Organization
NATO, the first five years, 1949-1954, common.topic.notable_types, Book
m.046w6y3, business.employment_tenure.company, North Atlantic Treaty Organization (NATO)
United Kingdom, base.locations.countries.continent, Europe
m.04kc73_, business.employment_tenure.company, North Atlantic Treaty Organization (NATO)
NATO and the Warsaw Pact, book.written_work.author, North Atlantic Treaty Organization (NATO)
Poland, base.locations.countries.continent, Europe
United Kingdom, location.location.containedby, Europe
NATO agreements on status: travaux préparatoires, common.topic.notable_types, Book
Europe, base.locations.continents.countries_within, Netherlands
Germany, organization.organization_founder.organizations_founded, European Union
Luxembourg, common.topic.notable_types, Country
NATO handbook, common.topic.notable_for, g.125fpx9sz
Southern Europe, location.location.contains, Italy
Operation Enduring Freedom – Horn of Africa, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), book.author.works_written, The signing of the North Atlantic treaty
m.03l8c0f, common.webpage.topic, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization (NATO), organization.membership_organization.members, m.03wzc6t
United Nations, organization.organization.founders, Poland
North Atlantic Treaty Organization (NATO), organization.organization.founders, Luxembourg
Flag of NATO.png, common.image.appears_in_topic_gallery, North Atlantic Treaty Organization (NATO)
World Trade Organization, organization.organization.founders, France
Battle of Košare, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
m.04jsm49, organization.organization_membership.organization, North Atlantic Treaty Organization (NATO)
Norway, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
United States of America, base.biblioness.bibs_topic.subsumes, United States of America
North Atlantic Treaty Organization (NATO), organization.organization.founders, United Kingdom
North Atlantic Treaty Organization (NATO), book.author.works_written, NATO and the Warsaw Pact
m.046w6xq, business.employment_tenure.company, North Atlantic Treaty Organization (NATO)
North Atlantic Treaty Organization Summit in Chicago in 2012, common.topic.notable_for, g.1257lxszj
World Trade Organization, organization.organization.founders, Italy
Siege of Sarajevo, base.culturalevent.event.entity_involved, North Atlantic Treaty Organization (NATO)
European Union, organization.organization.geographic_scope, Europe
m.07y862p, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
Germany, location.country.form_of_government, Representative democracy
North Atlantic Treaty Organization (NATO), military.military_combatant.includes_allies, Bulgaria
m.0bf4p91, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
Netherlands, organization.organization_founder.organizations_founded, North Atlantic Treaty Organization (NATO)
World Trade Organization, organization.organization.founders, Iceland
Nordic countries, location.location.contains, Norway
European Union, base.nations.supranational_body.member, France
NATO handbook, book.written_work.author, North Atlantic Treaty Organization (NATO)
Bibliographie, book.written_work.author, North Atlantic Treaty Organization (NATO)
Council of Europe, organization.organization.founders, Netherlands
Triple Entente, military.military_combatant.includes_allies, Portugal
Netherlands, organization.organization_member.member_of, m.04g9k0w
Belgium, base.locations.countries.continent, Europe
Bulgaria, common.topic.notable_types, Country
North Atlantic Treaty Organization (NATO), organization.organization.founders, Netherlands
Nato advanced study institutes, 1974 =, common.topic.notable_types, Book
m.07y5ffx, military.military_combatant_group.combatants, North Atlantic Treaty Organization (NATO)
United Kingdom, common.topic.notable_types, Country
Europe, organization.organization_scope.organizations_with_this_scope, European Union
Country, freebase.type_hints.included_types, Location
North Atlantic Treaty Organization (NATO), organization.membership_organization.members, m.03w6012
m.03z967f, military.military_combatant_group.combatants, Germany
Northern Europe, location.location.containedby, Europe

Answer: Bulgaria