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: which video game has the soundtracks of gran turismo 4 kicks? 
Knowledge Triplets: Gran Turismo 4, cvg.computer_videogame.release_date, 2004-12-28
Gran Turismo 4 Kicks, music.release.region, Japan
Gran Turismo 5, cvg.computer_videogame.prequel, Gran Turismo 4
Gran Turismo 4 Kicks, music.release.album, Gran Turismo 4 Kicks
Gran Turismo 4, cvg.game_version.game, Gran Turismo 4
Gran Turismo 4, imdb.topic.title_id, tt0317600
Gran Turismo 4, cvg.computer_videogame.cvg_genre, Sim racing
Video game music, music.genre.albums, Gran Turismo 4 Kicks
Gran Turismo 4, cvg.computer_videogame.sequel, Gran Turismo 5
Gran Turismo 4, cvg.computer_videogame.soundtracks, Gran Turismo 4 Kicks
Gran Turismo 4 Kicks, music.album.genre, Video game music
Gran Turismo 4 Kicks, music.release.length, 3892.453
Back on Track, music.recording.releases, Gran Turismo 4 Kicks
Gran Turismo 4 Kicks, music.album.release_type, Album
Bubble'n Tweak, music.recording.releases, Gran Turismo 4 Kicks
Gran Turismo 4 Kicks, music.album.release_date, 2005-03-02
Soundtrack, music.album_content_type.albums, Gran Turismo 4 Kicks
Moon Over the Castle (GT's Theme) (The Antidote vs. Synthetic long remix), music.recording.releases, Gran Turismo 4 Kicks
Compilation album, music.album_content_type.albums, Gran Turismo 4 Kicks
Gran Turismo 4 Kicks, music.album.album_content_type, Compilation album
Dream Snatcher, music.recording.releases, Gran Turismo 4 Kicks
Gran Turismo 4 Kicks, music.release.catalog_number, SOLMC-046
The Race, music.recording.releases, Gran Turismo 4 Kicks
Gran Turismo 4 Kicks, music.album.primary_release, Gran Turismo 4 Kicks
Gran Turismo 3: A-Spec, cvg.computer_videogame.sequel, Gran Turismo 4
Gran Turismo 4 Kicks, music.release.format, Compact disc
Move and Proceed, music.recording.releases, Gran Turismo 4 Kicks
Gran Turismo 4, cvg.computer_videogame.prequel, Gran Turismo 3: A-Spec
Gran Turismo 4, cvg.computer_videogame.designers, Kazunori Yamauchi
Gran Turismo 4 Kicks, cvg.video_game_soundtrack.video_game, Gran Turismo 4
Gran Turismo 4, cvg.computer_videogame.gameplay_modes, Single-player video game
Gran Turismo 4 Kicks, music.album.album_content_type, Soundtrack
Album, music.album_release_type.albums, Gran Turismo 4 Kicks
Inside Every Man (There's a Machine Waiting to Come Out), music.recording.releases, Gran Turismo 4 Kicks
Checker Flag, music.recording.releases, Gran Turismo 4 Kicks
Gran Turismo 4, cvg.computer_videogame.developer, Polyphony Digital
Gran Turismo 4, cvg.computer_videogame.versions, Gran Turismo 4
Gran Turismo 4, cvg.computer_videogame.publisher, Sony Computer Entertainment International
Gran Turismo 4 Kicks, music.release.release_date, 2005-03-02
Gran Turismo 4 Original Game Soundtrack, cvg.video_game_soundtrack.video_game, Gran Turismo 4
Gran Turismo 4 Kicks, music.album.releases, Gran Turismo 4 Kicks
Gran Turismo 4, cvg.computer_videogame.cvg_genre, Racing video game
Gran Turismo 4, cvg.computer_videogame.soundtracks, Gran Turismo 4 Original Game Soundtrack
Bullet, music.recording.releases, Gran Turismo 4 Kicks
Gran Turismo 4, cvg.computer_videogame.game_series, Gran Turismo

Answer: Gran Turismo 4