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: Who composed the song "Thinkin About-U!"? 
Knowledge Triplets: Composition, type.type.properties, Kind of composition
John Garcia, music.lyricist.lyrics_written, Molten Universe
m.01108cc4, music.track_contribution.contributor, John Garcia
Song, rdf-schema#range, Composition
Composition, freebase.type_profile.strict_included_types, Inanimate
Composition, type.type.expected_by, Composition
800, common.topic.notable_types, Composition
John Garcia, music.lyricist.lyrics_written, Capsized
John Garcia, common.topic.notable_for, g.125d130sr
Composition, type.type.expected_by, Works Composed
John Garcia, freebase.valuenotation.is_reviewed, Gender
Thinkin About-U!, common.topic.notable_for, g.1yfj2k474
Thinkin About-U!, music.recording.engineer, John Garcia
Composition, type.type.expected_by, Arrangement of
m.01109mtp, music.track_contribution.contributor, John Garcia
John Garcia, music.artist.track_contributions, m.0rqvszb
John Garcia, music.composer.compositions, Love Has Passed Me By
John Garcia, music.artist.track, The Thing That Should Not Be
John Garcia, music.artist.track_contributions, m.01109mtp
Composer, freebase.type_profile.published, Published
John Garcia, music.composer.compositions, Can't Let You Go
Composer, type.type.properties, Works Composed
Composition, freebase.type_profile.published, Published
John Garcia, music.engineer.tracks_engineered, Wanna Hustle?
Thinkin About-U!, common.topic.notable_types, Musical Recording
John Garcia, music.lyricist.lyrics_written, Yeah
Composition, type.type.properties, Arrangements
John Garcia, music.artist.label, Elektra Records
Composer, type.property.schema, Composition
Freedom Run, common.topic.notable_types, Composition
Composition, type.type.expected_by, Lyrics Written
Composition, type.type.expected_by, song
John Garcia, music.artist.track, Flower
Composer, type.type.expected_by, Composer
Lyricist, type.property.reverse_property, Lyrics Written
m.01v9xs5, music.group_membership.member, John Garcia
Composer, rdf-schema#range, Composer
John Garcia, music.group_member.membership, m.0zx0cr_
Recording of Composition, type.property.master_property, Recorded versions
Musical Recording, freebase.type_profile.strict_included_types, Topic
Composer, freebase.type_hints.included_types, Topic
Heavy metal, music.genre.subgenre, Stoner rock
John Garcia, common.topic.image, John garcia
Language, rdf-schema#domain, Composition
Musical Recording, type.type.expected_by, Recorded versions
Language, type.property.schema, Composition
Song, type.property.expected_type, Composition
Composition, type.type.properties, Lyrics Website
John Garcia, music.artist.track, Saddleback
John Garcia, music.artist.track, Argleben
John Garcia, music.artist.genre, Stoner rock
Composition, type.type.expected_by, Musical compositions about this topic
John Garcia, people.person.profession, Singer
m.01v9xrt, music.group_membership.member, John Garcia
m.010__5zb, music.track_contribution.contributor, John Garcia
John Garcia, people.person.profession, Musician
Thinkin About-U!, music.recording.producer, John Garcia
Composition, type.type.properties, Language
John Garcia, music.producer.tracks_produced, Wanna Hustle?
Place of first performance, rdf-schema#domain, Composition
Composition, type.type.domain, Music
Composition, type.type.expected_by, Score of
m.01106t26, music.track_contribution.contributor, John Garcia
John Garcia, music.composer.compositions, Thinkin About-U!
John Garcia, people.person.place_of_birth, San Manuel
m.0rqkyhl, music.track_contribution.contributor, John Garcia
San Manuel, location.hud_county_place.place, San Manuel
Composition, type.type.properties, Includes
Freedom Run, music.composition.lyricist, John Garcia
Musical Recording, freebase.type_profile.kind, Definition
John Garcia, freebase.valuenotation.is_reviewed, Country of nationality
John Garcia, music.lyricist.lyrics_written, Freedom Run
John Garcia, music.artist.track_contributions, m.01108cc4
Musical Recording, freebase.type_profile.strict_included_types, Abstract
m.01102r1r, music.track_contribution.contributor, John Garcia
Composer, rdf-schema#domain, Composition
Place(s) composed, type.property.schema, Composition
John Garcia, music.group_member.membership, m.01v9xr_
Composition, type.type.properties, Date completed
John Garcia, music.artist.album, Retro-Active
Composition, type.type.properties, Part of
John Garcia, music.composer.compositions, Wanna Hustle?
Composition, freebase.type_profile.kind, Definition
m.01v9xr_, music.group_membership.member, John Garcia
Composition, type.type.expected_by, Compositions
Thinkin About-U!, music.composition.recordings, Thinkin About-U!
John Garcia, music.group_member.membership, m.01v9xrm
United States of America, base.biblioness.bibs_topic.subsumes, United States of America
John Garcia, music.artist.track, Her Bullets Energy
Lyricist, type.property.schema, Composition
m.011dh285, music.group_membership.member, John Garcia
Composition, type.type.properties, Place of first performance
Musical Recording, type.type.properties, Recording of Composition
John Garcia, common.topic.notable_types, Composer
John Garcia, music.artist.track_contributions, m.01106t26
Composition, freebase.type_profile.equivalent_topic, Musical composition
John Garcia, people.person.profession, Singer
Musical Recording, type.type.domain, Music
Place(s) composed, rdf-schema#domain, Composition
San Manuel, location.location.containedby, United States of America
John Garcia, music.composer.compositions, Slow Dancin'
Lyricist, rdf-schema#domain, Composition
Musical composition, freebase.equivalent_topic.equivalent_type, Composition
John Garcia, music.lyricist.lyrics_written, Love Has Passed Me By
John Garcia, music.group_member.membership, m.01v9xrt
m.0zx0cr_, music.group_membership.member, John Garcia
John Garcia, music.lyricist.lyrics_written, 800
John Garcia, music.artist.track, Retro-Active (Wanne Hustle)
Composition, freebase.type_profile.strict_included_types, Abstract
Musician, people.profession.specializations, Singer
John Garcia, music.artist.track, The Blvd
Thinkin About-U!, music.recording.song, Thinkin About-U!
John Garcia, music.artist.track, Thinkin About-U!
John Garcia, music.lyricist.lyrics_written, Apothecaries' Weight
John Garcia, people.person.gender, Male
Composer, type.type.domain, Music
Musical Recording, freebase.type_profile.published, Published
John Garcia, music.artist.genre, Heavy metal
Thinkin About-U!, music.recording.producer, John Garcia
John Garcia, music.artist.genre, Desert rock
Thinkin About-U!, common.topic.notable_for, g.1yp3d0148
Composition, freebase.type_profile.strict_included_types, Topic
m.01v9xrm, music.group_membership.member, John Garcia
John Garcia, people.person.profession, Musician
United States of America, base.biblioness.bibs_topic.is_really, United States of America
Place of first performance, type.property.schema, Composition
Composer, type.property.expected_type, Composer
Recording of Composition, type.property.schema, Musical Recording
Composition, type.type.expected_by, Recording of Composition
Composition, type.type.properties, Lyricist
Composition, type.type.properties, Key
John Garcia, music.artist.track, All These Walls
San Manuel, location.location.people_born_here, John Garcia
John Garcia, people.person.nationality, United States of America
Composition, freebase.type_profile.strict_included_types, Non-Agent
Recording of Composition, rdf-schema#domain, Musical Recording
Composition, type.type.expected_by, Song
Recording of Composition, type.property.expected_type, Composition
Composition, type.type.expected_by, composition
John Garcia, music.composer.compositions, Dejame Sonar
Thinkin About-U!, music.recording.tracks, Thinkin About-U!
Composition, type.type.properties, Place(s) composed
Composer, owl#inverseOf, Works Composed
John Garcia, music.artist.track_contributions, m.01102r1r
John Garcia, music.group_member.membership, m.011dh285
John Garcia, freebase.valuenotation.is_reviewed, Date of birth
Composition, freebase.type_hints.included_types, Topic
Composition, common.topic.article, m.02tc4hy
Composition, type.type.properties, Composer
Composer, type.property.reverse_property, Works Composed
800, music.composition.lyricist, John Garcia
John Garcia, music.group_member.membership, m.01v9xs5
John Garcia, common.topic.article, m.03_lpn
Composition, freebase.documented_object.documentation, m.02tc4hy
Thinkin About-U!, music.recording.artist, John Garcia
John Garcia, music.artist.track, Wanna Hustle?
John Garcia, freebase.valuenotation.is_reviewed, Place of birth
Topic, freebase.type_profile.published, Published
Musical Recording, freebase.type_hints.included_types, Topic
John Garcia, music.engineer.tracks_engineered, Thinkin About-U!
Musical Recording, freebase.type_profile.strict_included_types, Non-Agent
m.0rqvszb, music.track_contribution.contributor, John Garcia
Composition, type.type.properties, Subjects
John Garcia, music.artist.track, My Mind
John Garcia, music.artist.track, His Bullets Energy
Thinkin About-U!, music.composition.composer, John Garcia
Lyricist, owl#inverseOf, Lyrics Written
Composition, type.type.expected_by, Includes
Composition, type.type.expected_by, Cataloged composition
John Garcia, music.artist.track, Confusion
Thinkin About-U!, common.topic.notable_types, Composition
Composition, type.type.properties, Recorded versions
Composition, type.type.properties, Recorded as album
John Garcia, music.artist.track_contributions, m.010__5zb
John Garcia, music.artist.track, 5000 Miles
Singer, people.profession.specialization_of, Musician
John Garcia, music.producer.tracks_produced, Thinkin About-U!
Recording of Composition, rdf-schema#range, Composition
Composition, type.type.expected_by, Part of
John Garcia, music.artist.track_contributions, m.0rqkyhl
John Garcia, music.artist.track, Rolling Stoned
Composition, type.type.expected_by, State song
John Garcia, freebase.valuenotation.has_value, Parents
Composition, type.type.properties, Date of first performance
Composer, freebase.type_profile.strict_included_types, Topic
John Garcia, music.artist.album, g.11b6tf38g1

Answer: Musician
Singer