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: united states general services administration was registered by which tld registry? 
Knowledge Triplets: General Services Administration, architecture.architectural_structure_owner.structures_owned, m.0f0fc2c
NASA, base.yupgrade.user.topics, General Services Administration
m.09vj0jk, base.yupgrade.user.topics, General Services Administration
General Services Administration, internet.top_level_domain_registry.domains, gov
United States of America, location.country.internet_tld, gov
gov, internet.top_level_domain.registry, ZoneEdit
General Services Administration, dataworld.information_source.data_operations, GSA Federal Supply Group codes
United States of America, location.country.internet_tld, mil
m.0f0fc2c, architecture.ownership.owner, General Services Administration
General Services Administration, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0081-34ae
m.0fplp_1, architecture.ownership.owner, General Services Administration
gov, internet.top_level_domain.registry, General Services Administration
General Services Administration, architecture.architectural_structure_owner.structures_owned, m.0fplp_1
United States of America, government.governmental_jurisdiction.agencies, General Services Administration
United States of America, location.country.internet_tld, edu
general services administration.noun.01, base.wordnet.synset.equivalent_topic, General Services Administration
m.03z7v26, visual_art.artwork_owner_relationship.owner, General Services Administration
General Services Administration, internet.website_owner.websites_owned, data.gov
General Services Administration, architecture.architectural_structure_owner.structures_owned, m.0hwxmc6
Harry S. Truman, organization.organization_founder.organizations_founded, General Services Administration
General Services Administration, internet.top_level_domain.registry, gov
m.09vj0jw, base.yupgrade.user.topics, General Services Administration
General Services Administration, visual_art.art_owner.artworks_owned, m.03z7v26
m.06h_8hr, base.yupgrade.user.topics, General Services Administration
m.0qt31lm, visual_art.artwork_owner_relationship.owner, General Services Administration
data.gov, internet.website.owner, General Services Administration
data.gov, internet.website.status, Active
General Services Administration, government.government_agency.jurisdiction, United States of America
United States of America, location.country.internet_tld, us
Wired, base.yupgrade.user.topics, General Services Administration
General Services Administration, visual_art.art_owner.artworks_owned, m.0qt31lm
m.06wft1x, base.yupgrade.user.topics, General Services Administration
m.07nt8hn, business.employment_tenure.company, General Services Administration
General Services Administration, business.employer.employees, m.07nt8hn
thadguidry, dataworld.provenance.source, General Services Administration
General Services Administration, organization.organization.date_founded, 1949-07-01
General Services Administration, organization.organization.founders, Harry S. Truman
United States of America, location.location.containedby, United States, with Territories
m.0qw8l44, dataworld.gardening_hint.last_referenced_by, General Services Administration
Active, internet.website_status.sites, data.gov
United States of America, location.country.iso3166_1_alpha2, US
United States of America, location.location.containedby, Americas
Harry S. Truman, government.u_s_congressperson.thomas_id, T000387
Harry S. Truman, government.us_president.presidency_number, 33
General Services Administration, dataworld.information_source.authority, thadguidry
m.0hwxmc6, architecture.ownership.owner, General Services Administration
m.09vj0k5, base.yupgrade.user.topics, General Services Administration
gov, internet.top_level_domain_registry.domains, ZoneEdit
United States of America, location.location.containedby, DVD Region 1
ZoneEdit, internet.top_level_domain_registry.domains, gov
GSA Federal Supply Group codes, dataworld.mass_data_operation.information_source, General Services Administration

Answer: ZoneEdit