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: Where is the location of the country whose national anthem is "Burundi Bwacu"? 
Knowledge Triplets: National Anthem, type.type.domain, Government
Rundi, base.rosetta.rosetta_document.refers_to, Kirundi language
Rundi, base.rosetta.local_name.locale, Burundi
Burundi Bwacu, music.composition.language, Kirundi language
Musical Artist, freebase.type_hints.included_types, Topic
Niger–Congo languages, language.language_family.sub_families, Bantu languages
Burundi: Burundi Bwâcu, common.topic.notable_for, g.126sp1nv0
m.0h_386d, government.national_anthem_of_a_country.anthem, Burundi Bwacu
Burundi Bwacu, common.topic.notable_types, National Anthem
National Anthem, freebase.type_profile.strict_included_types, Topic
Marc Barengayabo, music.artist.track, Burundi: Burundi Bwâcu
National Anthem, common.topic.article, m.03nbgmy
Kirundi language, base.rosetta.languoid.document, Rundi
Human Language, freebase.type_hints.included_types, Topic
Anthem, type.property.expected_type, National Anthem
Bantu languages, language.language_family.member_of_language_families, Niger–Congo languages
National Anthem, type.type.properties, National anthem of
Niger–Congo languages, language.language_family.geographic_distribution, Africa
Burundi, location.location.containedby, Africa
Burundi: Burundi Bwâcu, common.topic.notable_types, Musical Recording
Bantu languages, language.language_family.member_of_language_families, Benue–Congo languages
Kirundi language, base.rosetta.languoid.local_name, Rundi
Anthem, rdf-schema#range, National Anthem
Topic, freebase.type_profile.published, Published
Bantoid languages, language.language_family.member_of_language_families, Benue–Congo languages
Musical Recording, freebase.type_profile.kind, Definition
National Anthem, freebase.type_hints.included_types, Composition
Kirundi language, language.human_language.language_family, Bantoid languages
National Anthem, freebase.type_profile.kind, Definition
Rundi, base.rosetta.local_name.languoid, Kirundi language
Burundi Bwacu, common.topic.notable_for, g.1255s3_9g
Burundi: Burundi Bwâcu, music.recording.tracks, Burundi: Burundi Bwâcu
Rundi Genesis Translation, base.rosetta.rosetta_document.refers_to, Kirundi language
Burundi, location.country.official_language, Kirundi language
Kirundi language, language.human_language.language_family, Niger–Congo languages
Burundi Bwacu, government.national_anthem.national_anthem_of, m.0h_386d
Anthem, type.property.master_property, National anthem of
Musical Recording, freebase.type_profile.published, Published
Burundi Bwacu, music.composition.composer, Marc Barengayabo
Kirundi language, language.human_language.language_family, Benue–Congo languages
Burundi: Burundi Bwâcu, music.recording.artist, Marc Barengayabo
Composition, freebase.type_hints.included_types, Topic
Burundi, base.locations.countries.continent, Africa
National Anthem, freebase.type_profile.strict_included_types, Composition
Burundi Bwacu, music.composition.language, Kirundi language
National Anthem, freebase.type_hints.included_types, Topic
Bantu languages, language.language_family.languages, Kirundi language
Burundi Bwacu, music.composition.recordings, Burundi: Burundi Bwâcu
Composition, freebase.type_profile.published, Published
Benue–Congo languages, language.language_family.sub_families, Bantu languages
Kirundi language, common.topic.notable_types, Human Language
Musical Artist, freebase.type_profile.published, Published
Burundi, location.country.national_anthem, m.0h_386d
Kirundi language, language.human_language.region, Africa
Burundi: Burundi Bwâcu, music.recording.releases, National Anthems, Volume 1
Composition, freebase.type_profile.kind, Definition
Kirundi language, base.rosetta.languoid.document, Rundi Genesis Translation
Musical Recording, freebase.type_profile.strict_included_types, Topic
Bantu languages, language.language_family.member_of_language_families, Bantoid languages
Kirundi language, base.rosetta.languoid.languoid_class, Language
Burundi: Burundi Bwâcu, music.recording.song, Burundi Bwacu
Burundi Bwacu, common.topic.article, m.01l8dm
National Anthem, freebase.type_profile.published, Published
Human Language, freebase.type_profile.published, Published
Human Language, freebase.type_profile.kind, Definition
Bantoid languages, language.language_family.sub_families, Bantu languages
Musical Recording, freebase.type_hints.included_types, Topic
m.0h_386d, government.national_anthem_of_a_country.country, Burundi
National Anthem, type.type.expected_by, Anthem
Human Language, freebase.type_profile.strict_included_types, Topic
Marc Barengayabo, music.composer.compositions, Burundi Bwacu
Kirundi language, base.rosetta.languoid.parent, Rwanda-Rundi (J.60) Group
Musical Artist, freebase.type_profile.strict_included_types, Topic
Bantoid languages, language.language_family.languages, Kirundi language
Rwanda-Rundi (J.60) Group, base.rosetta.languoid.child, Kirundi language
Kirundi language, common.topic.notable_for, g.125bxswj8
Benue–Congo languages, language.language_family.sub_families, Bantoid languages
Kirundi language, language.human_language.language_family, Bantu languages
Africa, base.locations.continents.countries_within, Burundi
Marc Barengayabo, common.topic.notable_types, Musical Artist
Kirundi language, common.topic.article, m.020gsk
Composition, freebase.type_profile.strict_included_types, Topic
Marc Barengayabo, common.topic.notable_for, g.1255l0_l7
National Anthem, freebase.type_profile.equivalent_topic, National anthem
Kirundi language, language.human_language.main_country, Burundi
Kirundi language, language.human_language.region, Africa
National anthem, freebase.equivalent_topic.equivalent_type, National Anthem

Answer: Africa