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 nation that uses Afghan National Anthem as its national anthem has which type of government? 
Knowledge Triplets: Pashto language, language.human_language.countries_spoken_in, Pakistan
Indo-European languages, language.language_family.sub_families, Iranian languages
Pashto language, common.topic.image, Moderniranianlanguagesmap24
Islamic republic, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0081-6544
Wanetsi, language.human_language.language_family, Indo-Iranian languages
Persian alphabet, language.language_writing_system.languages, Pashto language
Islamic republic, government.form_of_government.countries, Iran
Pashto language, language.human_language.language_family, Indo-Iranian languages
National Anthem, type.type.domain, Government
Pashto language, language.human_language.writing_system, Latin alphabet
National Anthem, freebase.type_hints.included_types, Composition
Indo-Iranian languages, language.language_family.sub_families, Iranian languages
National Anthem, freebase.type_profile.strict_included_types, Composition
Wanetsi, language.language_dialect.language, Pashto language
Afghan National Anthem, government.national_anthem.national_anthem_of, m.0h_1ft4
Mauritania, location.country.form_of_government, Islamic republic
Islamic State of Afghanistan, location.country.form_of_government, Islamic republic
Pashto language, common.topic.article, m.0swm6
Afghanistan, location.country.national_anthem, m.0h_1ft4
Wazirwola dialect, common.topic.notable_types, Human Language
Arabic alphabet, language.language_writing_system.languages, Pashto language
Islamic republic, base.schemastaging.context_name.pronunciation, g.125_pty39
National Anthem, freebase.type_hints.included_types, Topic
Afghanistan, government.form_of_government.countries, Islamic republic
Pashto language, common.topic.image, Iranian Languages New Map8
Iranian languages, language.language_family.languages, Wanetsi
Anthem, type.property.master_property, National anthem of
m.0h_1ft4, government.national_anthem_of_a_country.country, Afghanistan
Person, freebase.type_profile.published, Published
Pashto language, language.human_language.dialects, Wanetsi
Persian alphabet, language.language_writing_system.parent_writing_systems, Persian alphabet
Abdul Bari Jahani, common.topic.notable_for, g.1yp3d718c
Human Language, freebase.type_hints.included_types, Topic
Human Language, freebase.type_profile.strict_included_types, Topic
Topic, freebase.type_profile.published, Published
Pashto language, common.topic.image, Moderniranianlanguagesmap
Pashto language, language.human_language.writing_system, Arabic alphabet
Wazirwola dialect, language.human_language.language_family, Indo-European languages
m.0h_1ft4, location.country.national_anthem, Afghanistan
Composition, freebase.type_profile.published, Published
National anthem, freebase.equivalent_topic.equivalent_type, National Anthem
Person, freebase.type_profile.strict_included_types, Topic
First East Turkestan Republic, location.country.form_of_government, Islamic republic
Indo-European languages, language.language_family.sub_families, Indo-Iranian languages
Wanetsi, language.human_language.main_country, Pakistan
Pashto language, language.human_language.language_family, Iranian languages
Pashto language, language.human_language.dialects, Wazirwola dialect
Afghan National Anthem, music.composition.language, Pashto language
Iran, location.country.languages_spoken, Pashto language
Islamic republic, government.form_of_government.countries, Afghanistan
Abdul Bari Jahani, common.topic.notable_types, Person
National Anthem, type.type.expected_by, Anthem
m.0h_1ft4, government.national_anthem_of_a_country.anthem, Afghan National Anthem
National Anthem, freebase.type_profile.published, Published
Anthem, type.property.expected_type, National Anthem
Afghanistan, location.country.languages_spoken, Pashto language
Composition, freebase.type_profile.kind, Definition
Pashto language, base.schemastaging.context_name.pronunciation, g.125_m606f
Persian alphabet, language.language_writing_system.parent_writing_systems, Arabic alphabet
Wazirwola dialect, language.human_language.language_family, Indo-Iranian languages
Pashto language, language.human_language.main_country, Pakistan
Pashto language, common.topic.notable_types, Human Language
Afghan National Anthem, common.topic.notable_for, g.1259fbz5y
Afghan National Anthem, common.topic.article, m.02r0hlb
Islamic republic, government.form_of_government.countries, First East Turkestan Republic
National Anthem, freebase.type_profile.equivalent_topic, National anthem
Indo-Iranian languages, language.language_family.member_of_language_families, Indo-European languages
Wazirwola dialect, language.language_dialect.language, Pashto language
Pakistan, location.country.languages_spoken, Pashto language
Composition, freebase.type_hints.included_types, Topic
Iranian languages, language.language_family.languages, Wazirwola dialect
Afghanistan, location.country.official_language, Pashto language
Arabic alphabet, language.language_writing_system.child_writing_systems, Persian alphabet
Pashto language, language.human_language.countries_spoken_in, Iran
Pashto language, language.human_language.writing_system, Pashto alphabet
Islamic republic, government.form_of_government.countries, Islamic State of Afghanistan
Pashto language, common.topic.notable_for, g.1256y7rw4
Pashto language, language.human_language.language_family, Indo-European languages
m.0r2v41p, dataworld.gardening_hint.last_referenced_by, Islamic republic
Wanetsi, language.human_language.language_family, Indo-European languages
Abdul Bari Jahani, music.lyricist.lyrics_written, Afghan National Anthem
Pashto language, language.human_language.countries_spoken_in, Afghanistan
Wazirwola dialect, language.human_language.language_family, Iranian languages
Anthem, rdf-schema#range, National Anthem
Afghan National Anthem, common.topic.notable_types, National Anthem
Islamic republic, government.form_of_government.countries, Mauritania
Pashto language, language.human_language.writing_system, Persian alphabet
Wanetsi, language.human_language.language_family, Iranian languages
Person, freebase.type_hints.included_types, Topic
National Anthem, type.type.properties, National anthem of
Human Language, freebase.type_profile.published, Published
National Anthem, freebase.type_profile.kind, Definition
Persian alphabet, language.language_writing_system.child_writing_systems, Persian alphabet
Afghanistan, location.country.form_of_government, Islamic republic
Afghan National Anthem, music.composition.lyricist, Abdul Bari Jahani
Iran, location.country.form_of_government, Islamic republic
Moderniranianlanguagesmap, common.image.appears_in_topic_gallery, Pashto language
Iranian languages, language.language_family.member_of_language_families, Indo-Iranian languages
Wanetsi, base.rosetta.languoid.languoid_class, Language
Wanetsi, common.topic.notable_types, Human Language
Human Language, freebase.type_profile.kind, Definition
National Anthem, freebase.type_profile.strict_included_types, Topic
Pashto language, base.rosetta.languoid.languoid_class, Language
Afghan National Anthem, government.national_anthem.national_anthem_of, m.0h_1ft4
National Anthem, common.topic.article, m.03nbgmy
Iranian languages, language.language_family.languages, Pashto language
Composition, freebase.type_profile.strict_included_types, Topic
Iranian languages, language.language_family.member_of_language_families, Indo-European languages

Answer: Islamic republic