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: The country with the national anthem National Anthem of Saudi Arabia has what government system? 
Knowledge Triplets: Kingdom of Yugoslavia, location.country.form_of_government, Absolute monarchy
Emirate of Bukhara, location.country.form_of_government, Absolute monarchy
Central African Empire, location.country.form_of_government, Absolute monarchy
Emirate of Afghanistan, location.country.form_of_government, Absolute monarchy
Angola, location.country.form_of_government, Unitary state
Madagascar, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Kingdom of Greece
Liberia, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Bangladesh
Absolute monarchy, government.form_of_government.countries, United Arab Emirates
Unitary state, government.form_of_government.countries, Seychelles
Absolute monarchy, government.form_of_government.countries, Aceh Sultanate
Sri Lanka, location.country.form_of_government, Unitary state
Sweden, location.country.form_of_government, Unitary state
Myanmar, location.country.form_of_government, Unitary state
Unitary state, base.schemastaging.context_name.pronunciation, g.125_kylpr
Absolute monarchy, government.form_of_government.countries, Russian Empire
Guatemala, location.country.form_of_government, Unitary state
Abdul Rahman Al-Khateeb, people.person.gender, Male
Sultanate of Siak Sri Indrapura, location.country.form_of_government, Absolute monarchy
Cambodia, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Second Empire of Haiti
Solomon Islands, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Grand Duchy of Moscow
Far Eastern Republic, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Tajikistan
National Anthem of Saudi Arabia, music.composition.composer, Abdul Rahman Al-Khateeb
Absolute monarchy, government.form_of_government.countries, Kingdom of the Two Sicilies
Albanian Kingdom, location.country.form_of_government, Absolute monarchy
New Zealand, location.country.form_of_government, Unitary state
Yemen, location.country.form_of_government, Unitary state
Costa Rica, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Colombia
Absolute monarchy, government.form_of_government.countries, Kingdom of Hawaii
Absolute monarchy, government.form_of_government.countries, Dahomey
Unitary state, government.form_of_government.countries, Mali
Absolute monarchy, government.form_of_government.countries, Tsardom of Russia
Netherlands, location.country.form_of_government, Unitary state
m.04q5_60, government.national_anthem_of_a_country.anthem, National Anthem of Saudi Arabia
Composer, freebase.type_profile.published, Published
Moravian Serbia, location.country.form_of_government, Absolute monarchy
Nicaragua, location.country.form_of_government, Unitary state
m.04q5_60, location.country.national_anthem, Saudi Arabia
Absolute monarchy, government.form_of_government.countries, Roman Kingdom
Absolute monarchy, government.form_of_government.countries, Swaziland
Congo Free State, location.country.form_of_government, Absolute monarchy
Sultanate of Zanzibar, location.country.form_of_government, Absolute monarchy
Absolute monarchy, government.form_of_government.countries, Mughal Empire
Absolute monarchy, government.form_of_government.countries, Vandal Kingdom
Absolute monarchy, government.form_of_government.countries, Moravian Serbia
Timor-Leste, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Brunei
Swaziland, location.country.form_of_government, Unitary state
Abdul Rahman Al-Khateeb, common.topic.notable_types, Composer
Absolute monarchy, government.form_of_government.countries, Empire of Japan
Absolute monarchy, government.form_of_government.countries, Saudi Arabia
m.0v265vn, dataworld.gardening_hint.replaced_by, Unitary state
Kingdom of Italy, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Martinique
Unitary state, government.form_of_government.countries, Vanuatu
Unitary state, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0081-309f
Absolute monarchy, government.form_of_government.countries, Lower Aulaqi Sultanate
Sierra Leone, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Peru
Vatican City, location.country.form_of_government, Absolute monarchy
Absolute monarchy, government.form_of_government.countries, Kingdom of Prussia
Unitary state, government.form_of_government.countries, Taiwan
Turkey, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Cambodia
Rwanda, location.country.form_of_government, Unitary state
Saudi Arabia, location.country.form_of_government, Unitary state
Kingdom of Sophene, location.country.form_of_government, Absolute monarchy
Byzantine Empire, location.country.form_of_government, Absolute monarchy
Lesotho, location.country.form_of_government, Unitary state
France, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Bahamas
Emirate of Jabal Shammar, location.country.form_of_government, Absolute monarchy
Sultanate of Sulu, location.country.form_of_government, Absolute monarchy
Islamic state, government.form_of_government.countries, Chechen Republic of Ichkeria
Kingdom of Greece, location.country.form_of_government, Absolute monarchy
National Anthem, freebase.type_profile.kind, Definition
Composition, freebase.type_profile.strict_included_types, Topic
National Anthem, type.type.expected_by, Anthem
Palau, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Sultanate of Zanzibar
Composition, freebase.type_profile.published, Published
Unitary state, government.form_of_government.countries, Denmark
Absolute monarchy, government.form_of_government.countries, Vatican City
m.04_8bg0, user.tsegaran.random.taxonomy_entry.subject, Islamic state
Vandal Kingdom, location.country.form_of_government, Absolute monarchy
Portugal, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Angola
Oman, location.country.form_of_government, Absolute monarchy
Singapore, location.country.form_of_government, Unitary state
Islamic Emirate of Afghanistan, location.country.form_of_government, Islamic state
Composition, freebase.type_profile.kind, Definition
Chile, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Turkey
National Anthem of Saudi Arabia, common.topic.article, m.024mx6
National anthem, freebase.equivalent_topic.equivalent_type, National Anthem
Absolute monarchy, government.form_of_government.countries, Kingdom of France
Mozambique, location.country.form_of_government, Unitary state
Anthem, rdf-schema#range, National Anthem
Mali, location.country.form_of_government, Unitary state
Cuba, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Grand Duchy of Lithuania
National Anthem, type.type.properties, National anthem of
Unitary state, government.form_of_government.countries, Panama
Unitary state, government.form_of_government.countries, United Kingdom
Denmark, location.country.form_of_government, Unitary state
Swaziland, location.country.form_of_government, Absolute monarchy
Azerbaijan, location.country.form_of_government, Unitary state
Kuwait, location.country.form_of_government, Unitary state
Abdul Rahman Al-Khateeb, music.artist.track, Saudi-Arabien
Absolute monarchy, government.form_of_government.countries, Sultanate of Siak Sri Indrapura
Absolute monarchy, government.form_of_government.countries, Ottoman Empire
Unitary state, government.form_of_government.countries, Nicaragua
Abdul Rahman Al-Khateeb, music.composer.compositions, National Anthem of Saudi Arabia
Composer, freebase.type_profile.strict_included_types, Topic
Japan, location.country.form_of_government, Unitary state
Malawi, location.country.form_of_government, Unitary state
New France, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Timor-Leste
Abdul Rahman Al-Khateeb, music.artist.track, Saudi Arabia
Thailand, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Palau
Spain, location.country.form_of_government, Unitary state
Tajikistan, location.country.form_of_government, Unitary state
Saudi Arabia, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Dominican Republic
Austrian Empire, location.country.form_of_government, Absolute monarchy
Equatorial Guinea, location.country.form_of_government, Unitary state
Empire of Japan, location.country.form_of_government, Absolute monarchy
Lyricist, freebase.type_profile.published, Published
Ghana, location.country.form_of_government, Unitary state
Andorra, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Singapore
Absolute monarchy, government.form_of_government.countries, Emirate of Beihan
Abkhazia, location.country.form_of_government, Unitary state
Haiti, location.country.form_of_government, Unitary state
Topic, freebase.type_profile.published, Published
Tsardom of Russia, location.country.form_of_government, Absolute monarchy
Kazakhstan, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Portugal
Kingdom of Prussia, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Jordan
Kingdom of Commagene, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Cyprus
Unitary state, government.form_of_government.countries, Rwanda
United Kingdom, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Solomon Islands
Kingdom of the Two Sicilies, location.country.form_of_government, Absolute monarchy
Absolute monarchy, government.form_of_government.countries, Oman
Absolute monarchy, government.form_of_government.countries, Empire of China
Bahamas, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Congo Free State
Democratic Republic of Georgia, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Central African Empire
Ibrahim Khafaji, people.person.gender, Male
Bangladesh, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, South Korea
Unitary state, government.form_of_government.countries, Iran
Unitary state, government.form_of_government.countries, Trinidad and Tobago
Absolute monarchy, government.form_of_government.countries, Kingdom of Yugoslavia
Saudi Arabia, location.country.form_of_government, Unitary state
Oman, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, New Spain
Unitary state, government.form_of_government.countries, Kazakhstan
Unitary state, government.form_of_government.countries, United Arab Republic
Saudi Arabia, location.country.national_anthem, m.04q5_60
Emirate of Beihan, location.country.form_of_government, Absolute monarchy
United Arab Republic, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Tunisia
Upper Yafa, location.country.form_of_government, Absolute monarchy
Bagratid Armenia, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Samoa
National Anthem, freebase.type_hints.included_types, Composition
Abdul Rahman Al-Khateeb, common.topic.notable_for, g.125dx7lcw
Unitary state, government.form_of_government.countries, Andorra
Unitary state, government.form_of_government.countries, Syria
Colombia, location.country.form_of_government, Unitary state
Qu'aiti, location.country.form_of_government, Absolute monarchy
Saudi Arabia, location.country.form_of_government, Islamic state
Absolute monarchy, user.avh.default_domain.ellerdale_topic.ellerdale_id, 009a-4405
Qatar, location.country.form_of_government, Absolute monarchy
Absolute monarchy, government.form_of_government.countries, Principality of Serbia
Chechen Republic of Ichkeria, location.country.form_of_government, Islamic state
Grand Duchy of Moscow, location.country.form_of_government, Absolute monarchy
Absolute monarchy, government.form_of_government.countries, Arminiya
Lyricist, freebase.type_profile.strict_included_types, Topic
Bonaire, location.country.form_of_government, Unitary state
Mughal Empire, location.country.form_of_government, Absolute monarchy
Kingdom of Armenia, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Far Eastern Republic
Brunei, location.country.form_of_government, Islamic state
Absolute monarchy, government.form_of_government.countries, United Kingdom of Portugal, Brazil and the Algarves
Ibrahim Khafaji, music.lyricist.lyrics_written, National Anthem of Saudi Arabia
Monaco, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Paraguay
Absolute monarchy, government.form_of_government.countries, Albanian Kingdom
Lebanon, location.country.form_of_government, Unitary state
Ukraine, location.country.form_of_government, Unitary state
Islamic state, government.form_of_government.countries, Islamic Emirate of Afghanistan
Unitary state, government.form_of_government.countries, Democratic Republic of Georgia
National Anthem, freebase.type_profile.equivalent_topic, National anthem
Unitary state, government.form_of_government.countries, Mozambique
Aceh Sultanate, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Bonaire
Lyricist, freebase.type_hints.included_types, Topic
Principality of Serbia, location.country.form_of_government, Absolute monarchy
Morocco, location.country.form_of_government, Unitary state
National Anthem, common.topic.article, m.03nbgmy
Absolute monarchy, government.form_of_government.countries, Sultanate of Sulu
National Anthem, freebase.type_profile.strict_included_types, Composition
Second Empire of Haiti, location.country.form_of_government, Absolute monarchy
Ecuador, location.country.form_of_government, Unitary state
United Kingdom of Portugal, Brazil and the Algarves, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Norway
Unitary state, government.form_of_government.countries, Sri Lanka
Unitary state, government.form_of_government.countries, Papua New Guinea
Jordan, location.country.form_of_government, Unitary state
m.0sy5llc, dataworld.gardening_hint.last_referenced_by, Absolute monarchy
Mahra Sultanate, location.country.form_of_government, Absolute monarchy
Republic of Ireland, location.country.form_of_government, Unitary state
Composition, freebase.type_hints.included_types, Topic
Romania, location.country.form_of_government, Unitary state
Dominican Republic, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Azerbaijan
Arminiya, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Republic of Ireland
Ibrahim Khafaji, common.topic.notable_for, g.125fjpyfq
Unitary state, government.form_of_government.countries, Abkhazia
Islamic state, user.tsegaran.random.taxonomy_subject.entry, m.04_8bg0
Roman Kingdom, location.country.form_of_government, Absolute monarchy
Anthem, type.property.expected_type, National Anthem
United Arab Emirates, location.country.form_of_government, Absolute monarchy
Panama, location.country.form_of_government, Unitary state
Bolivia, location.country.form_of_government, Unitary state
Georgia, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Brunei
Ibrahim Khafaji, common.topic.notable_types, Lyricist
Absolute monarchy, government.form_of_government.countries, Emirate of Jabal Shammar
Unitary state, government.form_of_government.countries, Marshall Islands
Unitary state, government.form_of_government.countries, Ecuador
National Anthem of Saudi Arabia, common.topic.notable_for, g.1254_dpsc
Absolute monarchy, government.form_of_government.countries, Kingdom of Naples
Unitary state, government.form_of_government.countries, Sweden
Bhutan, location.country.form_of_government, Unitary state
Marshall Islands, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Netherlands
Absolute monarchy, government.form_of_government.countries, Kingdom of Armenia
Unitary state, government.form_of_government.countries, Lesotho
Unitary state, government.form_of_government.countries, Ghana
Absolute monarchy, government.form_of_government.countries, Emirate of Bukhara
Unitary state, government.form_of_government.countries, Chechen Republic of Ichkeria
Unitary state, government.form_of_government.countries, France
Papua New Guinea, location.country.form_of_government, Unitary state
Chechen Republic of Ichkeria, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Austrian Empire
Unitary state, government.form_of_government.countries, Oman
m.0w6d6k6, dataworld.gardening_hint.last_referenced_by, Islamic state
Ottoman Empire, location.country.form_of_government, Absolute monarchy
Saudi Arabia, government.form_of_government.countries, Islamic state
Unitary state, government.form_of_government.countries, Liechtenstein
Absolute monarchy, government.form_of_government.countries, Qatar
Trinidad and Tobago, location.country.form_of_government, Unitary state
Samoa, location.country.form_of_government, Unitary state
Philippines, location.country.form_of_government, Unitary state
Dahomey, location.country.form_of_government, Absolute monarchy
Guyana, location.country.form_of_government, Unitary state
National Anthem of Saudi Arabia, common.topic.notable_types, National Anthem
National Anthem, type.type.domain, Government
Unitary state, government.form_of_government.countries, Guyana
Unitary state, government.form_of_government.countries, Georgia
Unitary state, government.form_of_government.countries, Kuwait
Unitary state, government.form_of_government.countries, Romania
Unitary state, government.form_of_government.countries, Malawi
Anthem, type.property.master_property, National anthem of
Kingdom of Hawaii, location.country.form_of_government, Absolute monarchy
Islamic state, government.form_of_government.countries, Brunei
Unitary state, government.form_of_government.countries, Liberia
m.0qwx00s, dataworld.gardening_hint.last_referenced_by, Unitary state
National Anthem, freebase.type_profile.strict_included_types, Topic
Islamic state, base.schemastaging.context_name.pronunciation, g.125_r60rn
Brunei, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Philippines
Luxembourg, location.country.form_of_government, Unitary state
Seychelles, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Mahra Sultanate
Absolute monarchy, government.form_of_government.countries, Emirate of Afghanistan
Islamic state, government.form_of_government.countries, Saudi Arabia
Islamic state, government.form_of_government.countries, Oman
Italy, location.country.form_of_government, Unitary state
National Anthem, freebase.type_profile.published, Published
Unitary state, government.form_of_government.countries, Chile
Unitary state, government.form_of_government.countries, Saudi Arabia
Unitary state, government.form_of_government.countries, Myanmar
Lower Aulaqi Sultanate, location.country.form_of_government, Absolute monarchy
Absolute monarchy, government.form_of_government.countries, Upper Yafa
Unitary state, government.form_of_government.countries, Yemen
m.04q5_60, government.national_anthem_of_a_country.country, Saudi Arabia
Unitary state, government.form_of_government.countries, Cuba
Unitary state, government.form_of_government.countries, Japan
Unitary state, government.form_of_government.countries, Uruguay
New Spain, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Haiti
Unitary state, government.form_of_government.countries, Lebanon
Absolute monarchy, government.form_of_government.countries, Byzantine Empire
Absolute monarchy, government.form_of_government.countries, First French Empire
Syria, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Luxembourg
Kingdom of France, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Bolivia
National Anthem, freebase.type_hints.included_types, Topic
Norway, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Monaco
Empire of China, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Italy
Absolute monarchy, government.form_of_government.countries, New France
Kingdom of Naples, location.country.form_of_government, Absolute monarchy
Peru, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Bagratid Armenia
Brunei, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Guatemala
Composer, freebase.type_hints.included_types, Topic
Unitary state, government.form_of_government.countries, Bhutan
Paraguay, location.country.form_of_government, Unitary state
Taiwan, location.country.form_of_government, Unitary state
Vanuatu, location.country.form_of_government, Unitary state
Tunisia, location.country.form_of_government, Unitary state
Emirate of Dhala, location.country.form_of_government, Absolute monarchy
Absolute monarchy, government.form_of_government.countries, Ethiopian Empire
National Anthem of Saudi Arabia, government.national_anthem.national_anthem_of, m.04q5_60
Unitary state, government.form_of_government.countries, Thailand
Unitary state, government.form_of_government.countries, New Zealand
Absolute monarchy, government.form_of_government.countries, Kingdom of Sophene
Unitary state, government.form_of_government.countries, Ukraine
Absolute monarchy, government.form_of_government.countries, Qu'aiti
Unitary state, government.form_of_government.countries, Kingdom of Italy
Oman, location.country.form_of_government, Islamic state
Kingdom of Travancore, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Morocco
Absolute monarchy, base.schemastaging.context_name.pronunciation, g.125_m3lnx
Cyprus, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Kingdom of Commagene
Unitary state, government.form_of_government.countries, Equatorial Guinea
Iran, location.country.form_of_government, Unitary state
Saudi Arabia, location.country.form_of_government, Absolute monarchy
First French Empire, location.country.form_of_government, Absolute monarchy
Martinique, location.country.form_of_government, Unitary state
Grand Duchy of Lithuania, location.country.form_of_government, Absolute monarchy
Russian Empire, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Madagascar
Unitary state, government.form_of_government.countries, Costa Rica
Liechtenstein, location.country.form_of_government, Unitary state
Absolute monarchy, government.form_of_government.countries, Kingdom of Travancore
Absolute monarchy, government.form_of_government.countries, Emirate of Dhala
Uruguay, location.country.form_of_government, Unitary state
Unitary state, government.form_of_government.countries, Swaziland
South Korea, location.country.form_of_government, Unitary state
National Anthem of Saudi Arabia, government.national_anthem.national_anthem_of, m.04q5_60
National Anthem of Saudi Arabia, music.composition.lyricist, Ibrahim Khafaji
Ethiopian Empire, location.country.form_of_government, Absolute monarchy
Unitary state, government.form_of_government.countries, Spain
Unitary state, government.form_of_government.countries, Sierra Leone

Answer: Unitary state
Islamic state
Absolute monarchy