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: What form of government is used in the country whose coat of arms is Seal of the United Mexican States? 
Knowledge Triplets: Federal republic, government.form_of_government.countries, Czech and Slovak Federative Republic
Constitutional republic, government.form_of_government.countries, Russia
Namibia, location.country.form_of_government, Presidential system
Belarus, location.country.form_of_government, Presidential system
Coat of Arms, freebase.type_profile.equivalent_topic, Coat of arms
Presidential system, government.form_of_government.countries, Gambia
Coat of Arms, type.type.expected_by, Marshaled into
Federal republic, government.form_of_government.countries, West Germany
Constitutional republic, government.form_of_government.countries, Mozambique
Constitutional republic, government.form_of_government.countries, Martinique
m.0gw0dvz, symbols.armorial_grant.armiger, Mexico
Coat of Arms, freebase.type_profile.kind, Definition
Presidential system, government.form_of_government.countries, Peru
Constitutional republic, government.form_of_government.countries, Peru
Russia, location.country.form_of_government, Federal republic
Constitutional republic, government.form_of_government.countries, Colombia
Constitutional republic, government.form_of_government.countries, Greece
Presidential system, government.form_of_government.countries, Bolivia
Eritrea, location.country.form_of_government, Presidential system
Federal republic, government.form_of_government.countries, Nigeria
Presidential system, government.form_of_government.countries, Uganda
Bosnia and Herzegovina, location.country.form_of_government, Federal republic
Presidential system, government.form_of_government.countries, Puntland
American Samoa, location.country.form_of_government, Constitutional republic
Federated States of Micronesia, location.country.form_of_government, Presidential system
Ethiopia, location.country.form_of_government, Federal republic
Comoros, location.country.form_of_government, Federal republic
Ivory Coast, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, South Korea
Coat of Arms, type.type.expected_by, Marshalled Coats of Arms
Presidential system, government.form_of_government.countries, Second Polish Republic
Brazil, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Portugal
Presidential system, government.form_of_government.countries, Equatorial Guinea
Sierra Leone, location.country.form_of_government, Presidential system
Federal republic, government.form_of_government.countries, Ethiopia
Austria, location.country.form_of_government, Federal republic
Somaliland, location.country.form_of_government, Constitutional republic
Presidential system, government.form_of_government.countries, Confederate States of America
United States of America, location.country.form_of_government, Federal republic
Presidential system, government.form_of_government.countries, Ecuador
Presidential system, government.form_of_government.countries, Colombia
Presidential system, government.form_of_government.countries, Indonesia
Constitutional republic, government.form_of_government.countries, Ghana
Federal republic, government.form_of_government.countries, Austria
Presidential system, government.form_of_government.countries, Ghana
Constitutional republic, government.form_of_government.countries, Tanzania
Presidential system, base.schemastaging.context_name.pronunciation, g.125_ql64_
Bolivia, location.country.form_of_government, Presidential system
South Sudan, location.country.form_of_government, Federal republic
Constitutional republic, government.form_of_government.countries, Azerbaijan
Constitutional republic, government.form_of_government.countries, South Africa
Nepal, location.country.form_of_government, Federal republic
Paraguay, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Sudan
Myanmar, location.country.form_of_government, Presidential system
Uruguay, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Rwanda
Presidential system, government.form_of_government.countries, Uruguay
Constitutional republic, government.form_of_government.countries, El Salvador
United Federations, fictional_universe.fictional_organization.type_of_organization, Federal republic
Federal republic, government.form_of_government.countries, Weimar Republic
Presidential system, government.form_of_government.countries, Iran
Constitutional republic, government.form_of_government.countries, Costa Rica
Coat of Arms, type.type.expected_by, Coat of arms
Presidential system, government.form_of_government.countries, Malawi
Presidential system, government.form_of_government.countries, Armenia
France, location.country.form_of_government, Constitutional republic
Presidential system, government.form_of_government.countries, Republic of Texas
Presidential system, government.form_of_government.countries, Ivory Coast
Panama, location.country.form_of_government, Constitutional republic
Venezuela, location.country.form_of_government, Constitutional republic
Ecuador, location.country.form_of_government, Constitutional republic
Argentina, location.country.form_of_government, Constitutional republic
Presidential system, government.form_of_government.countries, United Arab Emirates
Presidential system, government.form_of_government.countries, Tajikistan
Presidential system, government.form_of_government.countries, Philippines
Presidential system, government.form_of_government.countries, Seychelles
Federal republic, fictional_universe.fictional_organization_type.organizations, United Federations
Federal republic, government.form_of_government.countries, Brazil
El Salvador, location.country.form_of_government, Constitutional republic
Chile, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Honduras
West Germany, location.country.form_of_government, Federal republic
El Salvador, location.country.form_of_government, Presidential system
Coat of Arms, type.type.properties, Supporter
Presidential system, government.form_of_government.countries, Paraguay
m.0n4sc9z, dataworld.gardening_hint.replaced_by, Constitutional republic
Coat of Arms, type.type.domain, Symbols
Brazil, location.country.form_of_government, Federal republic
Presidential system, government.form_of_government.countries, Belarus
Federal republic, government.form_of_government.countries, Iraq
Presidential system, government.form_of_government.countries, Federated States of Micronesia
Zambia, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Mozambique
Presidential system, government.form_of_government.countries, Costa Rica
Cyprus, location.country.form_of_government, Constitutional republic
Azerbaijan, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Germany
Liberia, location.country.form_of_government, Presidential system
Argentina, location.country.form_of_government, Presidential system
Switzerland, location.country.form_of_government, Federal republic
Kazakhstan, location.country.form_of_government, Presidential system
Federal republic, government.form_of_government.countries, Comoros
Constitutional republic, government.form_of_government.countries, Trinidad and Tobago
Marshall Islands, location.country.form_of_government, Presidential system
Russia, location.country.form_of_government, Constitutional republic
Federal republic, government.form_of_government.countries, Pakistan
Coat of Arms, type.type.properties, Coronet
Seal of the United Mexican States, common.topic.notable_for, g.1256fv2t0
Myanmar, location.country.form_of_government, Constitutional republic
Presidential system, government.form_of_government.countries, Nicaragua
Tanzania, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Maldives
Germany, location.country.form_of_government, Federal republic
Mexico, symbols.coat_of_arms_bearer.coat_of_arms_used, m.0gw0dvz
Northern Mariana Islands, location.country.form_of_government, Presidential system
Costa Rica, location.country.form_of_government, Constitutional republic
Coat of Arms, type.type.properties, Helm
Mexico, government.form_of_government.countries, Federal republic
Presidential system, government.form_of_government.countries, Republic of Afghanistan
Constitutional republic, government.form_of_government.countries, Yemen
Venezuela, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Singapore
Constitutional republic, government.form_of_government.countries, Republic of Ireland
Coat of Arms, type.type.properties, Mantling
Gabon, location.country.form_of_government, Presidential system
Philippines, location.country.form_of_government, Presidential system
Coat of Arms, freebase.type_hints.included_types, Topic
Federal republic, base.ontologies.ontology_instance.equivalent_instances, m.07nhchw
Presidential system, government.form_of_government.countries, Guinea
Guatemala, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Panama
Seychelles, location.country.form_of_government, Presidential system
Guatemala, location.country.form_of_government, Constitutional republic
United Arab Emirates, location.country.form_of_government, Presidential system
Coat of Arms, freebase.type_profile.strict_included_types, Topic
Nicaragua, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Kyrgyzstan
Panama, location.country.form_of_government, Presidential system
Sri Lanka, location.country.form_of_government, Constitutional republic
Indonesia, location.country.form_of_government, Constitutional republic
Presidential system, government.form_of_government.countries, Cyprus
Mozambique, location.country.form_of_government, Constitutional republic
Republic of Afghanistan, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, First Spanish Republic
Presidential system, government.form_of_government.countries, Mexico
Presidential system, government.form_of_government.countries, Republic of the Congo
Presidential system, government.form_of_government.countries, South Korea
m.010vsw91, dataworld.gardening_hint.last_referenced_by, Presidential system
Coat of Arms, type.type.properties, Marshalled Coats of Arms
Federal republic, government.form_of_government.countries, Socialist Federal Republic of Yugoslavia
Presidential system, government.form_of_government.countries, Northern Mariana Islands
Republic of Texas, location.country.form_of_government, Presidential system
Coat of Arms, type.type.properties, Order
Federal republic, government.form_of_government.countries, United States of America
Taiwan, location.country.form_of_government, Constitutional republic
Federal republic, government.form_of_government.countries, Venezuela
Coat of Arms, type.type.properties, Crest
United States of America, location.country.form_of_government, Constitutional republic
Iran, location.country.form_of_government, Presidential system
Honduras, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Venezuela
Presidential system, government.form_of_government.countries, Venezuela
Presidential system, government.form_of_government.countries, Italian Social Republic
Presidential system, government.form_of_government.countries, Namibia
Federal republic, government.form_of_government.countries, South Sudan
Coat of Arms, type.type.expected_by, Coat of Arms
Confederate States of America, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Yemen
m.0gw0dvz, symbols.armorial_grant.armiger, Mexico
Colombia, location.country.form_of_government, Constitutional republic
Federal republic, government.form_of_government.countries, Tanzania
Germany, location.country.form_of_government, Constitutional republic
Tanzania, location.country.form_of_government, Federal republic
Republic of Hawaii, location.country.form_of_government, Presidential system
Federal republic, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0080-d81e
Coat of Arms, type.type.properties, Bearers
Presidential system, government.form_of_government.countries, Turkmenistan
Angola, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Somaliland
Presidential system, government.form_of_government.countries, South Sudan
India, location.country.form_of_government, Constitutional republic
Federal republic, government.form_of_government.countries, Sudan
Yemen, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Argentina
Tajikistan, location.country.form_of_government, Presidential system
Federal republic, government.form_of_government.countries, Nepal
Presidential system, government.form_of_government.countries, Liberia
South Korea, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Uruguay
Presidential system, government.form_of_government.countries, Sierra Leone
Costa Rica, location.country.form_of_government, Presidential system
Congo, location.country.form_of_government, Presidential system
Federal republic, government.form_of_government.countries, Somalia
Transnistria, location.country.form_of_government, Presidential system
Sudan, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Transnistria
Iceland, location.country.form_of_government, Constitutional republic
Somalia, location.country.form_of_government, Federal republic
Sierra Leone, location.country.form_of_government, Constitutional republic
India, location.country.form_of_government, Federal republic
Coat of Arms, type.type.properties, Brisures
Constitutional republic, government.form_of_government.countries, Chile
Federal republic, government.form_of_government.countries, Russia
Paraguay, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Iceland
Coat of Arms, type.type.properties, Motto
m.07nhchw, base.ontologies.ontology_instance_mapping.freebase_topic, Federal republic
Presidential system, government.form_of_government.countries, Myanmar
Constitutional republic, government.form_of_government.countries, Guatemala
Constitutional republic, government.form_of_government.countries, France
South Korea, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Cyprus
Guam, location.country.form_of_government, Presidential system
Socialist Federal Republic of Yugoslavia, location.country.form_of_government, Federal republic
Presidential system, government.form_of_government.countries, Nagorno-Karabakh Republic
South Sudan, location.country.form_of_government, Presidential system
Seal of the United Mexican States, symbols.coat_of_arms.bearers, m.0gw0dvz
Kenya, location.country.form_of_government, Presidential system
Singapore, location.country.form_of_government, Constitutional republic
Republic of the Congo, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, India
Nagorno-Karabakh Republic, location.country.form_of_government, Presidential system
Gambia, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Myanmar
Presidential system, government.form_of_government.countries, Algeria
First Spanish Republic, location.country.form_of_government, Presidential system
Uganda, location.country.form_of_government, Presidential system
Italian Social Republic, location.country.form_of_government, Presidential system
Trinidad and Tobago, location.country.form_of_government, Constitutional republic
Uzbekistan, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, United States of America
Nigeria, location.country.form_of_government, Presidential system
Argentina, location.country.form_of_government, Federal republic
Constitutional republic, government.form_of_government.countries, Sri Lanka
Presidential system, government.form_of_government.countries, Marshall Islands
Constitutional republic, government.form_of_government.countries, Mexico
Nigeria, location.country.form_of_government, Federal republic
Azerbaijan, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Ukraine
Federal republic, government.form_of_government.countries, Argentina
Liberia, location.country.form_of_government, Constitutional republic
Turkmenistan, location.country.form_of_government, Presidential system
Coat of arms, freebase.equivalent_topic.equivalent_type, Coat of Arms
Coat of Arms, type.type.properties, Marshaled into
Mexico, government.form_of_government.countries, Constitutional republic
Coat of Arms, type.type.properties, Charges
Peru, location.country.form_of_government, Presidential system
Seal of the United Mexican States, symbols.coat_of_arms.bearers, m.0gw0dvz
m.0r1g7_q, dataworld.gardening_hint.last_referenced_by, Federal republic
Presidential system, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0080-9549
Presidential system, government.form_of_government.countries, Chechen Republic of Ichkeria
Presidential system, government.form_of_government.countries, Azerbaijan
Presidential system, government.form_of_government.countries, Chad
Puntland, location.country.form_of_government, Presidential system
Chile, location.country.form_of_government, Presidential system
Iraq, location.country.form_of_government, Federal republic
Presidential system, government.form_of_government.countries, Chile
Presidential system, government.form_of_government.countries, Panama
Presidential system, government.form_of_government.countries, Argentina
Indonesia, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Republic of Hawaii
Mexico, location.country.form_of_government, Constitutional republic
Presidential system, government.form_of_government.countries, Zambia
Palau, location.country.form_of_government, Presidential system
Peru, location.country.form_of_government, Constitutional republic
Portugal, location.country.form_of_government, Constitutional republic
Colombia, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Gabon
Federal republic, government.form_of_government.countries, Czechoslovak Socialist Republic
Ecuador, location.country.form_of_government, Presidential system
m.0gw0dvz, symbols.armorial_grant.coat_of_arms, Seal of the United Mexican States
Tanzania, location.country.form_of_government, Constitutional republic
Kyrgyzstan, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Tanzania
Seal of the United Mexican States, common.topic.article, m.04f00zs
m.0n4_1qr, dataworld.gardening_hint.last_referenced_by, Constitutional republic
Coat of Arms, type.type.properties, Division or Variation of the Field
Federal republic, government.form_of_government.countries, India
Pakistan, location.country.form_of_government, Federal republic
Algeria, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Palau
Presidential system, government.form_of_government.countries, Angola
Federal republic, government.form_of_government.countries, Bosnia and Herzegovina
Constitutional republic, government.form_of_government.countries, United States of America
Uruguay, location.country.form_of_government, Constitutional republic
Malawi, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Italy
Constitutional republic, government.form_of_government.countries, Indonesia
Constitutional republic, government.form_of_government.countries, Sierra Leone
Republic of Ireland, location.country.form_of_government, Constitutional republic
Sudan, location.country.form_of_government, Federal republic
French Second Republic, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Nigeria
Federal republic, government.form_of_government.countries, Germany
Ukraine, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Liberia
Constitutional republic, government.form_of_government.countries, Taiwan
Federal republic, government.form_of_government.countries, Mexico
Presidential system, government.form_of_government.countries, Kazakhstan
Presidential system, government.form_of_government.countries, Brazil
Philippines, location.country.form_of_government, Constitutional republic
Constitutional republic, government.form_of_government.countries, Paraguay
Brazil, location.country.form_of_government, Presidential system
Weimar Republic, location.country.form_of_government, Federal republic
Presidential system, government.form_of_government.countries, Guam
Italy, location.country.form_of_government, Constitutional republic
Czechoslovak Socialist Republic, location.country.form_of_government, Federal republic
Coat of Arms, type.type.properties, Ordinaire
Equatorial Guinea, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, El Salvador
Presidential system, government.form_of_government.countries, Guatemala
Czech and Slovak Federative Republic, location.country.form_of_government, Federal republic
Presidential system, government.form_of_government.countries, Uzbekistan
Coat of Arms, common.topic.article, m.05cwkwt
Yemen, location.country.form_of_government, Constitutional republic
Cyprus, location.country.form_of_government, Presidential system
Presidential system, government.form_of_government.countries, Eritrea
Federal republic, government.form_of_government.countries, Switzerland
Presidential system, government.form_of_government.countries, Congo
Mexico, location.country.form_of_government, Presidential system
Constitutional republic, government.form_of_government.countries, Brazil
Constitutional republic, government.form_of_government.countries, American Samoa
Martinique, location.country.form_of_government, Constitutional republic
Presidential system, government.form_of_government.countries, French Second Republic
Constitutional republic, government.form_of_government.countries, Ecuador
Chad, location.country.form_of_government, Presidential system
Coat of Arms, type.type.properties, Torse
Maldives, location.country.form_of_government, Presidential system
Rwanda, location.country.form_of_government, Presidential system
Armenia, location.country.form_of_government, Presidential system
Second Polish Republic, location.country.form_of_government, Presidential system
Greece, location.country.form_of_government, Constitutional republic
Venezuela, location.country.form_of_government, Federal republic
Mexico, location.country.form_of_government, Federal republic
Chechen Republic of Ichkeria, location.country.form_of_government, Presidential system
Coat of Arms, type.type.properties, Compartments
Presidential system, government.form_of_government.countries, Kenya
Constitutional republic, government.form_of_government.countries, Philippines
Seal of the United Mexican States, common.topic.notable_types, Coat of Arms
Mexico, location.country.form_of_government, Presidential system
Ghana, location.country.form_of_government, Constitutional republic
South Africa, location.country.form_of_government, Constitutional republic
Guinea, location.country.form_of_government, Presidential system
Mozambique, location.country.form_of_government, Presidential system
Ghana, location.country.form_of_government, Presidential system
United States of America, location.country.form_of_government, Presidential system

Answer: Presidential system
Constitutional republic
Federal republic