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 is the winner of the 2015 WGC Cadillac Championship dating? 
Knowledge Triplets: m.0wpd79b, celebrities.romantic_relationship.relationship_type, Engaged to
m.0k57yqk, film.performance.actor, Paulina Gretzky
m.010d_wk4, celebrities.romantic_relationship.relationship_type, Engaged to
m.0j2g_nc, film.performance.actor, Paulina Gretzky
m.04c_zh0, celebrities.romantic_relationship.relationship_type, Engaged to
m.0_z2qqz, celebrities.romantic_relationship.relationship_type, Engaged to
m.0y5zxyc, celebrities.romantic_relationship.relationship_type, Engaged to
m.0vtw_5m, celebrities.romantic_relationship.relationship_type, Engaged to
m.0k57yqy, film.performance.actor, Paulina Gretzky
m.0wg18kw, celebrities.romantic_relationship.relationship_type, Engaged to
m.0z9zl69, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, people.person.nationality, United States of America
Paulina Gretzky, people.person.height_meters, 1.73
m.0qs7wf0, celebrities.romantic_relationship.relationship_type, Engaged to
m.0v0l_75, celebrities.romantic_relationship.relationship_type, Engaged to
m.010b0qz1, celebrities.romantic_relationship.relationship_type, Engaged to
m.0wpd79b, celebrities.romantic_relationship.celebrity, Paulina Gretzky
m.078g8__, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, sports.pro_athlete.sports_played_professionally, m.0d651cn
m.04yj7mm, celebrities.romantic_relationship.relationship_type, Engaged to
m.05dz5bn, celebrities.romantic_relationship.relationship_type, Engaged to
m.0wr5q9p, celebrities.romantic_relationship.relationship_type, Engaged to
Engaged to, celebrities.romantic_relationship.relationship_type, m.0wpd79b
m.0pct1sy, celebrities.romantic_relationship.relationship_type, Engaged to
m.0ycnmdf, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, celebrities.celebrity.sexual_relationships, m.0wpd79b
m.0j19gcr, people.marriage.spouse, Dustin Johnson
m.0n1k31h, education.education.student, Dustin Johnson
Dustin Johnson, celebrities.celebrity.sexual_relationships, m.0wpd79b
Adult contemporary music, music.genre.artists, Paulina Gretzky
Paulina Gretzky, people.person.profession, Singer
Paulina Gretzky, imdb.topic.name_id, nm0340423
m.0cgjxb3, celebrities.romantic_relationship.relationship_type, Engaged to
m.0wr5t06, celebrities.romantic_relationship.relationship_type, Engaged to
m.03yxkzv, celebrities.romantic_relationship.relationship_type, Engaged to
2015 WGC-Cadillac Championship, award.competition.winner, Dustin Johnson
m.0j2h3yy, people.sibling_relationship.sibling, Paulina Gretzky
Dustin Johnson, common.topic.article, m.04n4sw8
m.0wfs75t, celebrities.romantic_relationship.relationship_type, Engaged to
m.04ypqbz, celebrities.romantic_relationship.relationship_type, Engaged to
m.0bj7zhc, celebrities.romantic_relationship.relationship_type, Engaged to
m.0j2h3ym, people.sibling_relationship.sibling, Paulina Gretzky
Dustin Johnson, common.topic.notable_for, g.1258s89jq
m.05kcvy2, celebrities.romantic_relationship.relationship_type, Engaged to
m.05vb45t, celebrities.romantic_relationship.relationship_type, Engaged to
m.078g8_r, celebrities.romantic_relationship.relationship_type, Engaged to
m.0jsgkk2, celebrities.romantic_relationship.relationship_type, Engaged to
m.0k3nf1d, celebrities.romantic_relationship.relationship_type, Engaged to
m.010g4b2n, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, people.person.gender, Male
Paulina Gretzky, people.person.date_of_birth, 1988-12-19
m.0j17dj4, celebrities.romantic_relationship.relationship_type, Engaged to
m.0_tjm6m, celebrities.romantic_relationship.relationship_type, Engaged to
m.0sgkqdj, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, common.topic.image, Dustin Johnson 2008 US Open cropped
m.0zstc23, celebrities.romantic_relationship.relationship_type, Engaged to
m.0sgl08q, celebrities.romantic_relationship.relationship_type, Engaged to
m.0d651cn, sports.pro_sports_played.athlete, Dustin Johnson
m.04hdsld, celebrities.romantic_relationship.relationship_type, Engaged to
m.044_qj8, celebrities.romantic_relationship.relationship_type, Engaged to
m.05ss_28, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, music.artist.genre, Adult contemporary music
Paulina Gretzky, people.person.profession, Model
m.0_6xfy_, celebrities.romantic_relationship.relationship_type, Engaged to
m.05yt1x6, celebrities.romantic_relationship.relationship_type, Engaged to
m.05nyj2l, celebrities.romantic_relationship.relationship_type, Engaged to
m.05cw3vz, celebrities.romantic_relationship.relationship_type, Engaged to
m.0wz5_69, celebrities.romantic_relationship.relationship_type, Engaged to
m.0ltj8gv, celebrities.romantic_relationship.relationship_type, Engaged to
m.0_mx100, celebrities.romantic_relationship.relationship_type, Engaged to
m.0y4_nv2, celebrities.romantic_relationship.relationship_type, Engaged to
m.05nlg42, celebrities.romantic_relationship.relationship_type, Engaged to
m.04fxdzh, celebrities.romantic_relationship.relationship_type, Engaged to
m.010c4w5j, celebrities.romantic_relationship.relationship_type, Engaged to
Janet Jones, people.person.children, Paulina Gretzky
Los Angeles, location.location.people_born_here, Paulina Gretzky
Paulina Gretzky, people.person.sibling_s, m.0j2h3z7
m.0znw57b, celebrities.romantic_relationship.relationship_type, Engaged to
m.04dmhfj, celebrities.romantic_relationship.relationship_type, Engaged to
m.0106yvk3, celebrities.romantic_relationship.relationship_type, Engaged to
m.0jz4h5v, celebrities.romantic_relationship.relationship_type, Engaged to
m.0n4__dk, celebrities.romantic_relationship.relationship_type, Engaged to
m.0rb2ds4, celebrities.romantic_relationship.relationship_type, Engaged to
m.010g04x5, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, base.schemastaging.golfer_extra.caddies, m.0j2gkm6
m.05nbysq, celebrities.romantic_relationship.relationship_type, Engaged to
m.05k6zyg, celebrities.romantic_relationship.relationship_type, Engaged to
m.06_mqdp, celebrities.romantic_relationship.relationship_type, Engaged to
m.05nmxjy, celebrities.romantic_relationship.relationship_type, Engaged to
m.05dbk9y, celebrities.romantic_relationship.relationship_type, Engaged to
m.0j17d40, celebrities.romantic_relationship.relationship_type, Engaged to
m.0h4n9x_, celebrities.romantic_relationship.relationship_type, Engaged to
m.04flchj, celebrities.romantic_relationship.relationship_type, Engaged to
m.07ybrkx, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, base.chickipedia.topic.chickipedia_id, paulina-gretzky
Paulina Gretzky, people.person.place_of_birth, Los Angeles
m.0wzwvrl, celebrities.romantic_relationship.relationship_type, Engaged to
m.05k83kc, celebrities.romantic_relationship.relationship_type, Engaged to
m.0zwwf2z, celebrities.romantic_relationship.relationship_type, Engaged to
m.0j2h3y9, people.sibling_relationship.sibling, Paulina Gretzky
m.04flfg0, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, award.competitor.competitions, 2014 Open Championship (British Open)
Dustin Johnson, people.person.place_of_birth, Columbia
m.0v39msd, celebrities.romantic_relationship.relationship_type, Engaged to
m.0clswzp, celebrities.romantic_relationship.relationship_type, Engaged to
Pop music, music.genre.artists, Paulina Gretzky
m.04hygyc, celebrities.romantic_relationship.relationship_type, Engaged to
m.0hy_62y, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, people.person.parents, Wayne Gretzky
m.0w8cq5n, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, people.person.sibling_s, m.0j2h3y9
Dustin Johnson, people.person.education, m.0n1k31h
m.05nb2tl, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, people.person.profession, Actor
m.0107fmz8, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, music.artist.label, AO Recordings
Dustin Johnson, common.topic.notable_types, Celebrity
m.0jwfpxy, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, music.artist.genre, Pop music
m.0djxs92, celebrities.romantic_relationship.relationship_type, Engaged to
m.05l1b63, celebrities.romantic_relationship.relationship_type, Engaged to
Columbia, location.location.containedby, United States of America
m.05kh4ng, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, film.actor.film, m.0j2g_nc
Paulina Gretzky, celebrities.celebrity.sexual_relationships, m.0wpd79b
m.0_07852, celebrities.romantic_relationship.relationship_type, Engaged to
m.0w77qdx, celebrities.romantic_relationship.relationship_type, Engaged to
m.0tllwng, celebrities.romantic_relationship.relationship_type, Engaged to
m.05by336, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, award.competitor.competitions_won, 2015 WGC-Cadillac Championship
2015 WGC-Cadillac Championship, award.competition.winner, Dustin Johnson
United States of America, base.biblioness.bibs_topic.subsumes, United States of America
m.0pd1rl5, celebrities.romantic_relationship.relationship_type, Engaged to
m.0w4dvw5, celebrities.romantic_relationship.relationship_type, Engaged to
m.0x2ytxs, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, people.person.sibling_s, m.0j2h3yy
Singer, people.profession.people_with_this_profession, Paulina Gretzky
m.05bt5b0, celebrities.romantic_relationship.relationship_type, Engaged to
m.010g4gq3, celebrities.romantic_relationship.relationship_type, Engaged to
m.010gx_th, celebrities.romantic_relationship.relationship_type, Engaged to
m.0_3shy4, celebrities.romantic_relationship.relationship_type, Engaged to
Columbia, location.hud_county_place.place, Columbia
Paulina Gretzky, people.person.gender, Female
Paulina Gretzky, film.actor.film, m.0k57yqy
m.05nmq32, celebrities.romantic_relationship.relationship_type, Engaged to
m.0py898c, celebrities.romantic_relationship.relationship_type, Engaged to
m.05b94_k, celebrities.romantic_relationship.relationship_type, Engaged to
m.0106vrmb, celebrities.romantic_relationship.relationship_type, Engaged to
m.09vqt92, celebrities.romantic_relationship.relationship_type, Engaged to
m.0zrl58j, celebrities.romantic_relationship.relationship_type, Engaged to
m.0cgjx9x, celebrities.romantic_relationship.relationship_type, Engaged to
m.0h3c82h, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, people.person.spouse_s, m.0j19gcr
m.0wpd79b, celebrities.romantic_relationship.celebrity, Dustin Johnson
m.0ndsw90, celebrities.romantic_relationship.relationship_type, Engaged to
m.0x1xwf4, celebrities.romantic_relationship.relationship_type, Engaged to
m.0wkzwz_, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, user.avh.default_domain.ellerdale_topic.ellerdale_id, 009b-8200
m.0gb3qvw, celebrities.romantic_relationship.relationship_type, Engaged to
m.04dq1_0, celebrities.romantic_relationship.relationship_type, Engaged to
Actor, people.profession.people_with_this_profession, Paulina Gretzky
m.05sqzym, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, people.person.nationality, United States of America
m.05lywfd, celebrities.romantic_relationship.relationship_type, Engaged to
m.0_1xg76, celebrities.romantic_relationship.relationship_type, Engaged to
m.05sr_cd, celebrities.romantic_relationship.relationship_type, Engaged to
m.0krvx0n, celebrities.romantic_relationship.relationship_type, Engaged to
m.0_p6tkz, celebrities.romantic_relationship.relationship_type, Engaged to
Dustin Johnson, people.person.profession, Golfer
m.0jyd1z_, celebrities.romantic_relationship.relationship_type, Engaged to
m.04dk81p, celebrities.romantic_relationship.relationship_type, Engaged to
m.0j2h3z7, people.sibling_relationship.sibling, Paulina Gretzky
United States of America, base.biblioness.bibs_topic.is_really, United States of America
m.076_rql, celebrities.romantic_relationship.relationship_type, Engaged to
m.030qm5d, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, people.person.sibling_s, m.0j2h3ym
m.0n3mt_3, celebrities.romantic_relationship.relationship_type, Engaged to
m.0y48l6f, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, people.person.parents, Janet Jones
m.0wpd79b, celebrities.romantic_relationship.celebrity, Paulina Gretzky
m.0l1vc4m, celebrities.romantic_relationship.relationship_type, Engaged to
AO Recordings, music.record_label.artist, Paulina Gretzky
m.0zww7nw, celebrities.romantic_relationship.relationship_type, Engaged to
m.0gy6rnf, celebrities.romantic_relationship.relationship_type, Engaged to
m.05svbmj, celebrities.romantic_relationship.relationship_type, Engaged to
Wayne Gretzky, people.person.children, Paulina Gretzky
Model, people.profession.people_with_this_profession, Paulina Gretzky
m.0j2gkm6, base.schemastaging.golfer_caddie_relationship.golfer, Dustin Johnson
m.0wz5p2q, celebrities.romantic_relationship.relationship_type, Engaged to
m.0wqd_x9, celebrities.romantic_relationship.relationship_type, Engaged to
Paulina Gretzky, film.actor.film, m.0k57yqk
m.05hr5vy, celebrities.romantic_relationship.relationship_type, Engaged to
m.05q_fj7, celebrities.romantic_relationship.relationship_type, Engaged to
Columbia, base.biblioness.bibs_location.country, United States of America
m.05v6vvt, celebrities.romantic_relationship.relationship_type, Engaged to
m.0zgv6yn, celebrities.romantic_relationship.relationship_type, Engaged to
m.0jxv63r, celebrities.romantic_relationship.relationship_type, Engaged to
m.044_ns6, celebrities.romantic_relationship.relationship_type, Engaged to
m.0zv3s94, celebrities.romantic_relationship.relationship_type, Engaged to
m.04fxdz1, celebrities.romantic_relationship.relationship_type, Engaged to
m.05kg0r0, celebrities.romantic_relationship.relationship_type, Engaged to
m.04c_yr7, celebrities.romantic_relationship.relationship_type, Engaged to
m.04dwx70, celebrities.romantic_relationship.relationship_type, Engaged to
m.010gz96f, celebrities.romantic_relationship.relationship_type, Engaged to
m.0w46vf4, celebrities.romantic_relationship.relationship_type, Engaged to
m.0jx89hh, celebrities.romantic_relationship.relationship_type, Engaged to

Answer: Paulina Gretzky