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 kind of money is used where "Gaumii Salaam" is the national anthem? 
Knowledge Triplets: Composition, freebase.type_profile.published, Published
Maldivian rufiyaa, finance.currency.countries_used, Maldives
Muhammad Jameel Didi, people.person.profession, Politician
Anthem, type.property.master_property, National anthem of
National Anthem, freebase.type_hints.included_types, Topic
Maldivian rufiyaa, finance.currency.currency_code, MVR
m.0r7y0n2, dataworld.gardening_hint.last_referenced_by, Maldivian rufiyaa
National Anthem, type.type.properties, National anthem of
Maldivian rufiyaa, finance.currency.prefix_symbol, Rf
Muhammad Jameel Didi, common.topic.notable_for, g.125bjkn_k
Gaumii salaam, music.composition.lyricist, Muhammad Jameel Didi
National Anthem, type.type.expected_by, Anthem
Gaumii salaam, common.topic.notable_types, National Anthem
Muhammad Jameel Didi, music.lyricist.lyrics_written, Gaumii salaam
Composition, freebase.type_profile.kind, Definition
National Anthem, freebase.type_profile.strict_included_types, Topic
Anthem, rdf-schema#range, National Anthem
Gaumii salaam, government.national_anthem.national_anthem_of, m.0h_1m4v
Maldives, location.country.national_anthem, m.0h_1m4v
m.0h_1m4v, government.national_anthem_of_a_country.country, Maldives
Composition, freebase.type_hints.included_types, Topic
National anthem, freebase.equivalent_topic.equivalent_type, National Anthem
Author, freebase.type_profile.strict_included_types, Topic
National Anthem, freebase.type_profile.strict_included_types, Composition
Muhammad Jameel Didi, common.topic.article, m.02rp450
Author, freebase.type_profile.published, Published
National Anthem, common.topic.article, m.03nbgmy
Muhammad Jameel Didi, common.topic.notable_types, Author
Muhammad Jameel Didi, common.topic.image, Usthazul Jeel Muhammad Jameel Didi of Maldives
National Anthem, type.type.domain, Government
Gaumii salaam, common.topic.notable_for, g.1259jvd86
Maldives, location.country.currency_used, Maldivian rufiyaa
Gaumii salaam, common.topic.article, m.03n8jj
m.0j3shmw, base.schemastaging.athlete_salary.currency, Maldivian rufiyaa
National Anthem, freebase.type_profile.equivalent_topic, National anthem
Author, freebase.type_hints.included_types, Topic
m.0h_1m4v, government.national_anthem_of_a_country.anthem, Gaumii salaam
Composition, freebase.type_profile.strict_included_types, Topic
Muhammad Jameel Didi, people.person.gender, Male
National Anthem, freebase.type_profile.published, Published
National Anthem, freebase.type_hints.included_types, Composition
National Anthem, freebase.type_profile.kind, Definition
Maldives, location.country.currency_used, Maldivian rufiyaa
Topic, freebase.type_profile.published, Published
Anthem, type.property.expected_type, National Anthem
Gaumii salaam, government.national_anthem.national_anthem_of, m.0h_1m4v
m.0h_1m4v, government.national_anthem_of_a_country.country, Maldives
Maldivian rufiyaa, finance.currency.prefix_symbol, MRF

Answer: Maldivian rufiyaa