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 US Senator ran against George W. Bush in his second term? 
Knowledge Triplets: m.0b6rb25, common.webpage.topic, George W. Bush
George W. Bush, people.appointer.appointment_made, m.07bxbwt
United States presidential election, 2000, base.culturalevent.event.entity_involved, George W. Bush
George W. Bush, freebase.valuenotation.is_reviewed, Gender
m.09wzgck, common.webpage.topic, George W. Bush
George W. Bush, people.person.education, m.02h5y1k
2004 Republican National Convention, base.politicalconventions.political_convention.presidential_nominee, George W. Bush
m.09xq57h, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.0y4n7ty
President of the United States, book.book_subject.works, Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush
United States Senator, common.topic.notable_for, g.1259lv35m
George W. Bush, government.political_appointer.appointees, m.09rg1ck
George W. Bush, common.topic.webpage, m.0b467gq
George W. Bush, people.person.profession, Actor
George W. Bush, people.appointer.appointment_made, m.07bx2g3
George W. Bush, common.topic.webpage, m.05cl8vj
George W. Bush, common.topic.webpage, m.09wc5xx
George W. Bush, common.topic.webpage, m.0cq6qqk
m.09yk4hs, common.webpage.topic, George W. Bush
m.09wvjqn, common.webpage.topic, George W. Bush
m.09xj0xq, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.09k879g
George W. Bush, law.litigant.party_to_cases, m.0dggt61
George W. Bush, people.person.education, m.04hc70r
m.09y3_y_, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.0bvbn5b
George W. Bush, government.political_appointer.appointees, m.0bvbn4q
George W. Bush, people.appointer.appointment_made, m.07t42m3
George W. Bush, government.political_appointer.appointees, m.04j7j01
United States Senate election in Massachusetts, 2008, government.election.winner, John Kerry
George-W-Bush, common.image.appears_in_topic_gallery, ESTJ
George W. Bush, common.topic.webpage, m.09wd1lb
George W. Bush, government.political_appointer.appointees, m.03p6fqr
George W. Bush, people.person.places_lived, m.02xlp0j
George W. Bush, people.appointer.appointment_made, m.07tgzr0
George W. Bush, government.political_appointer.appointees, m.094tpcd
m.09xqjbk, common.webpage.topic, George W. Bush
United States presidential election, 2000, common.topic.image, George-W-Bush
m.0z9x978, award.award_nomination.award_nominee, George W. Bush
George W. Bush, government.political_appointer.appointees, m.04kmvbp
George W. Bush, common.topic.webpage, m.09wtbj9
George W. Bush, government.political_appointer.appointees, m.09k327k
George-W-Bush, common.image.appears_in_topic_gallery, Republican Party presidential primaries, 2000
m.0b45t9w, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.0y4n80h
George-W-Bush, common.image.appears_in_topic_gallery, George W. Bush
m.05cl8vj, common.webpage.topic, George W. Bush
George W. Bush, people.appointer.appointment_made, m.07bgzbd
George W. Bush, people.person.profession, Public speaker
George W. Bush, common.topic.webpage, m.09yxwl4
George W. Bush, people.appointer.appointment_made, m.07bxvpl
George W. Bush, government.political_appointer.appointees, m.094tpcz
George W. Bush, common.topic.webpage, m.09w6n41
George-W-Bush, common.image.appears_in_topic_gallery, Presidential streets in San Francisco
President George Walker Bush, base.saturdaynightlive.snl_character.impression_of, George W. Bush
George W. Bush, government.political_appointer.appointees, m.05bltkb
George W. Bush, government.political_appointer.appointees, m.05bp3wx
George W. Bush, common.topic.notable_types, US President
George H. W. Bush, freebase.valuenotation.is_reviewed, Gender
George W. Bush presidential campaign, 2000, government.election_campaign.party, Republican Party
George W. Bush, government.political_appointer.appointees, m.04j3cmy
George W. Bush, common.topic.webpage, m.09wv6dz
George W. Bush, government.political_appointer.appointees, m.05bp2nn
George W. Bush, common.topic.webpage, m.0dd63nz
m.09y4l4c, common.webpage.topic, George W. Bush
George W. Bush, common.topic.webpage, m.0b6rb25
m.09xqyb2, common.webpage.topic, George W. Bush
George W. Bush, common.topic.notable_for, g.125fmxvvc
m.09w8697, common.webpage.topic, George W. Bush
George W. Bush, people.appointer.appointment_made, m.079znpg
George W. Bush, common.topic.webpage, m.09x2fy5
George W. Bush, government.political_appointer.appointees, m.04kqmyw
m.09ybgkr, common.webpage.topic, George W. Bush
George H. W. Bush, people.person.gender, Male
m.09wxgcr, common.webpage.topic, George W. Bush
United States Senate, government.governmental_body.jurisdiction, United States of America
m.09wc5xx, common.webpage.topic, George W. Bush
United States Senate, common.topic.webpage, m.03ldgbc
m.09tmjfr, award.award_nomination.award_nominee, George W. Bush
George W. Bush, government.political_appointer.appointees, m.010g1fx8
George W. Bush, government.political_appointer.appointees, m.0b6b7yp
George W. Bush, common.topic.webpage, m.09x1f13
United States presidential election, 2004, government.election.campaigns, John Kerry presidential campaign, 2004
United States presidential election, 2004, government.election.campaigns, George W. Bush presidential campaign, 2004
George W. Bush (Chris Parnell), base.saturdaynightlive.snl_character.impression_of, George W. Bush
United States presidential election, 2000, government.election.campaigns, George W. Bush presidential campaign, 2000
m.079m7hg, business.employment_tenure.company, George W. Bush presidential campaign, 2004
m.02_9z_h, business.employment_tenure.company, George W. Bush presidential campaign, 2004
George W. Bush presidential campaign, 2000, government.election_campaign.candidate, George W. Bush
George W. Bush, people.appointer.appointment_made, m.079q3lx
George W. Bush, common.topic.webpage, m.0b46s8p
George W. Bush, common.topic.webpage, m.09wvjqn
m.09y87pn, common.webpage.topic, George W. Bush
George W. Bush, common.topic.webpage, m.09w9w3t
George W. Bush, common.topic.webpage, m.09yb4p2
George W. Bush, government.political_appointer.appointees, m.09k8753
George W. Bush, common.topic.webpage, m.09xwxtx
George W. Bush, people.appointer.appointment_made, m.07t428_
George W. Bush, common.topic.webpage, m.09ybnm8
George W. Bush presidential campaign, 2004, common.topic.notable_for, g.1257w3www
m.09xm3sq, common.webpage.topic, George W. Bush
George H. W. Bush, people.person.religion, Episcopal Church
George W. Bush, common.topic.webpage, m.09xlzxl
George H. W. Bush, people.person.profession, Businessperson
m.09yblhp, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.05bpfdt
m.09y1msy, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.08v_t2j
m.0b4614y, common.webpage.topic, George W. Bush
George W. Bush, government.politician.election_campaigns, George W. Bush presidential campaign, 2004
George H. W. Bush, people.person.children, George W. Bush
m.09wv6dz, common.webpage.topic, George W. Bush
George H. W. Bush, common.topic.notable_types, US President
George W. Bush, people.appointer.appointment_made, m.07bxn7g
m.09yb4p2, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.04d1yn9
George W. Bush, people.appointer.appointment_made, m.07p2gdn
George W. Bush 2005 presidential inauguration, base.culturalevent.event.entity_involved, Dick Cheney
George W. Bush, government.political_appointer.appointees, m.0_w5p0j
George W. Bush, base.politicalconventions.presidential_nominee.nominated_at, 2004 Republican National Convention
George W. Bush, people.person.religion, United Methodist Church
George W. Bush, common.topic.webpage, m.09yv0mc
George W. Bush, people.appointer.appointment_made, m.07t40np
United States presidential election, 2004, government.election.winner, George W. Bush
George W. Bush, common.topic.webpage, m.09y4l4c
George-W-Bush, common.image.appears_in_topic_gallery, 2000 Republican National Convention
George W. Bush, book.book_subject.works, The Republican War on Science
George H. W. Bush, people.person.ethnicity, Scotch-Irish American
George W. Bush, common.topic.webpage, m.0b4998d
George W. Bush, government.political_appointer.appointees, m.059mkvx
m.09wfqdr, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.05v3nfb
m.09wtbj9, common.webpage.topic, George W. Bush
m.09x2fy5, common.webpage.topic, George W. Bush
George W. Bush, people.appointer.appointment_made, m.07nnwv0
George W. Bush, people.appointer.appointment_made, m.07t4248
United States Senate election in Massachusetts, 2008, common.topic.image, John F. Kerry
George W. Bush, government.political_appointer.appointees, m.04g5n0w
George W. Bush, people.appointer.appointment_made, m.07nnjs4
George W. Bush, people.person.places_lived, m.03prwzr
George W. Bush, government.political_appointer.appointees, m.09k8760
George W. Bush, government.political_appointer.appointees, m.04st3gl
George W. Bush, government.political_appointer.appointees, m.0514fmp
George W. Bush, people.person.gender, Male
United States of America, people.person.nationality, John Kerry
George W. Bush, people.appointer.appointment_made, m.079yyy4
George W. Bush, government.political_appointer.appointees, m.04djxnp
John Kerry presidential campaign, 2004, government.election_campaign.candidate, John Kerry
George W. Bush, common.topic.webpage, m.09xhy82
George-W-Bush, common.image.appears_in_topic_gallery, United States presidential election in New Hampshire, 2004
George W. Bush, people.appointer.appointment_made, m.07nff35
m.09w6n41, common.webpage.topic, George W. Bush
George W. Bush, people.person.profession, Author
m.0_ksc80, award.award_nomination.award_nominee, George W. Bush
George W. Bush, people.person.education, m.0n0nhb9
George W. Bush, people.person.sibling_s, m.02kldmp
George W. Bush, government.political_appointer.appointees, m.07nt05b
George W. Bush, common.topic.webpage, m.09yblhp
George W. Bush, common.topic.webpage, m.0b48tmq
George W. Bush, government.political_appointer.appointees, m.0jb8jjy
George W. Bush, common.topic.webpage, m.0b4614y
George W. Bush presidential campaign, 2000, government.election_campaign.election, United States presidential election, 2000
George W. Bush, people.appointer.appointment_made, m.07t43bg
George W. Bush, base.politicalconventions.presidential_nominee.nominated_at, 2000 Republican National Convention
Presidency of George W. Bush, people.person.place_of_birth, New Haven
George W. Bush, common.topic.webpage, m.09wxgcr
George W. Bush, government.political_appointer.appointees, m.04st3g7
George W. Bush, government.politician.party, m.03fx81s
United States Senate, book.author.works_written, Tributes to Senator Marlow W. Cook
George W. Bush, government.political_appointer.appointees, m.0b6b7yk
George W. Bush, people.person.education, m.0123xm02
George W. Bush, government.political_appointer.appointees, m.04kmvbg
George W. Bush, government.political_appointer.appointees, m.05bp3xv
George W. Bush, common.topic.image, George-W-Bush
George W. Bush, common.topic.webpage, m.09xtbyz
George W. Bush, common.topic.webpage, m.09xq57h
George W. Bush presidential campaign, 2004, common.topic.image, BUSHLAURA
George W. Bush, people.appointer.appointment_made, m.07t2s_b
George W. Bush, government.political_appointer.appointees, m.0bvqp5v
George W. Bush, government.political_appointer.appointees, m.04flftx
George W. Bush, government.political_appointer.appointees, m.0_w654d
m.09y927q, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.05bpfc8
George W. Bush, common.topic.webpage, m.09xj0xq
m.09xtbyz, common.webpage.topic, George W. Bush
George-W-Bush, common.image.appears_in_topic_gallery, United States presidential election, 2000
George W. Bush, common.topic.webpage, m.045ykp5
George W. Bush, common.topic.webpage, m.09xgl9b
United States Senate, common.topic.webpage, m.0422l7l
George W. Bush, government.political_appointer.appointees, m.0n3nz1d
Presidency of George W. Bush, people.person.profession, Businessperson
John F. Kerry, common.image.appears_in_topic_gallery, United States Senate election in Massachusetts, 2008
George W. Bush, people.appointer.appointment_made, m.079pxt1
m.09x1f13, common.webpage.topic, George W. Bush
m.0_l7s66, award.award_nomination.award_nominee, George W. Bush
George W. Bush, base.argumentmaps.decision_maker.motivation, m.05yx9x9
m.03fx81s, government.political_party_tenure.politician, George W. Bush
George W. Bush, people.appointer.appointment_made, m.07t40ss
George W. Bush, government.political_appointer.appointees, m.04kk7nj
George W. Bush, people.appointer.appointment_made, m.07bxdw7
George W. Bush presidential campaign, 2004, business.employer.employees, m.079m7hg
George H. W. Bush, people.person.nationality, United States of America
George W. Bush, people.appointer.appointment_made, m.07tg_46
m.09xgl9b, common.webpage.topic, George W. Bush
m.09wtlg1, common.webpage.topic, George W. Bush
George W. Bush presidential campaign, 2004, business.employer.employees, m.02_9z_h
John F. Kerry, common.image.appears_in_topic_gallery, United States Senate election in Massachusetts, 1996
George W. Bush, common.topic.webpage, m.09xr6q2
George W. Bush, government.political_appointer.appointees, m.04kmvlt
United States presidential election, 2000, government.election.winner, George W. Bush
George W. Bush, common.topic.webpage, m.09x24yw
George W. Bush, government.political_appointer.appointees, m.04j9005
George W. Bush presidential campaign, 2004, common.topic.notable_types, Election campaign
George W. Bush, people.appointer.appointment_made, m.079q61y
United States presidential election, 2004, time.event.locations, United States of America
George W. Bush, government.us_president.vice_president, Dick Cheney
George-W-Bush, common.image.appears_in_topic_gallery, Texas gubernatorial election, 1998
George W. Bush, government.political_appointer.appointees, m.05bpf9v
George W. Bush, people.appointer.appointment_made, m.010p95d2
m.09xlzxl, common.webpage.topic, George W. Bush
George W. Bush, common.topic.webpage, m.09y87pn
m.0_kn6b0, award.award_nomination.award_nominee, George W. Bush
George W. Bush, government.political_appointer.appointees, m.05bp3w8
United States presidential election, 2004, common.topic.image, John F. Kerry
George W. Bush, people.appointer.appointment_made, m.07xhk83
George W. Bush, common.topic.webpage, m.09ym00w
George W. Bush, government.political_appointer.appointees, m.04d1ym_
m.09xhy82, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.0b6znrh
Dick Cheney, government.us_vice_president.to_president, George W. Bush
George W. Bush, common.topic.webpage, m.09y5fl0
United States presidential election, 1988, government.election.winner, George H. W. Bush
m.09yxwl4, common.webpage.topic, George W. Bush
George-W-Bush, common.image.appears_in_topic_gallery, Presidency of George W. Bush
George W. Bush, people.appointer.appointment_made, m.07bh279
George W. Bush, government.political_appointer.appointees, m.094tpcn
George W. Bush, base.americancomedy.impersonated_celebrity.impersonated_by, Chris Parnell
m.09y7w8d, common.webpage.topic, George W. Bush
George W. Bush, government.politician.government_positions_held, m.04ks0l1
George W. Bush, people.person.sibling_s, m.02kldjl
George W. Bush, common.topic.article, m.09b6_1
George W. Bush, government.political_appointer.appointees, m.07yrr5v
George-W-Bush, common.image.appears_in_topic_gallery, Texas gubernatorial election, 1994
George W. Bush presidential campaign, 2004, government.election_campaign.party, Republican Party
George W. Bush, government.political_appointer.appointees, m.0_w6gp6
George W. Bush, common.topic.webpage, m.09w8697
2000 Republican National Convention, base.politicalconventions.political_convention.presidential_nominee, George W. Bush
George W. Bush presidential campaign, 2004, government.election_campaign.candidate, George W. Bush
George W. Bush, freebase.valuenotation.is_reviewed, Country of nationality
George W. Bush, people.person.profession, Businessperson
United States presidential election, 1988, base.culturalevent.event.entity_involved, George H. W. Bush
George W. Bush, people.appointer.appointment_made, m.07tgzvl
George W. Bush, government.politician.government_positions_held, m.02h6phn
m.09xwxtx, common.webpage.topic, George W. Bush
m.0b467gq, common.webpage.topic, George W. Bush
George W. Bush, base.americancomedy.impersonated_celebrity.impersonated_by, Dana Carvey
George W. Bush, government.political_appointer.appointees, m.05bp2z7
George W. Bush, people.person.parents, Barbara Bush
George W. Bush, government.political_appointer.appointees, m.075yfsf
George W. Bush, base.americancomedy.impersonated_celebrity.impersonated_by, Will Ferrell
George W. Bush, common.topic.webpage, m.09y7w8d
George W. Bush, people.person.sibling_s, m.025m1vf
George W. Bush, people.appointer.appointment_made, m.07tgzxn
George W. Bush, people.appointer.appointment_made, m.07t42_2
George W. Bush, government.political_appointer.appointees, m.04kqmy_
George W. Bush, people.appointer.appointment_made, m.079yxg5
George W. Bush, people.person.sibling_s, m.02kldl1
George W. Bush, common.topic.webpage, m.09yk4hs
George W. Bush presidential campaign, 2000, book.book_subject.works, Ambling into History: The Unlikely Odyssey of George W. Bush
m.0pd39tb, award.award_nomination.award_nominee, George W. Bush
m.09wd1lb, common.webpage.topic, George W. Bush
George W. Bush, common.topic.webpage, m.09xqjbk
George W. Bush, government.political_appointer.appointees, m.09k326_
Presidency of George W. Bush, people.person.religion, United Methodist Church
George W. Bush, common.topic.webpage, m.0b48rq5
George W. Bush, common.topic.webpage, m.09y927q
George W. Bush, common.topic.webpage, m.09wfqdr
George-W-Bush, common.image.appears_in_topic_gallery, United States presidential election, 2004
United States presidential election, 2004, common.topic.image, George-W-Bush
George W. Bush, common.topic.webpage, m.09ybgkr
George W. Bush, people.person.profession, Politician
George W. Bush, people.appointer.appointment_made, m.07tg_62
George W. Bush, people.person.religion, Episcopal Church
m.09ybnm8, common.webpage.topic, George W. Bush
George W. Bush, government.politician.election_campaigns, George W. Bush presidential campaign, 2000
George W. Bush, people.person.spouse_s, m.0hyfqzh
m.09w9w3t, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.04hyxq0
George W. Bush, people.appointer.appointment_made, m.07nb5sq
George W. Bush, people.person.children, Barbara Pierce Bush
George W. Bush presidential campaign, 2004, common.topic.article, m.02jxtl
George W. Bush, government.political_appointer.appointees, m.011qhxxc
m.09ydwfg, common.webpage.topic, George W. Bush
George W. Bush, people.appointer.appointment_made, m.07t41yd
George W. Bush, base.americancomedy.impersonated_celebrity.impersonated_by, Rich Little
George W. Bush, common.topic.webpage, m.09xqyb2
Iowa Republican caucuses, 2000, common.topic.image, George-W-Bush
m.0b4998d, common.webpage.topic, George W. Bush
George W. Bush, government.political_appointer.appointees, m.09k873r
George W. Bush, government.political_appointer.appointees, m.09vkh4l
George W. Bush, common.topic.webpage, m.09wtlg1
m.09y5fl0, common.webpage.topic, George W. Bush
George W. Bush presidential campaign, 2000, common.topic.notable_types, Election campaign
George W. Bush, people.appointer.appointment_made, m.07t2gp9
George W. Bush, people.appointer.appointment_made, m.079yvj1
m.09xr6q2, common.webpage.topic, George W. Bush
m.0b46s8p, common.webpage.topic, George W. Bush
George W. Bush, people.appointer.appointment_made, m.07tg_33
United States presidential election, 2004, base.culturalevent.event.entity_involved, George W. Bush
George H. W. Bush, government.politician.government_positions_held, m.01xrx8q
George W. Bush, people.appointer.appointment_made, m.07th01g
Presidency of George W. Bush, common.topic.image, George-W-Bush
George W. Bush, people.appointer.appointment_made, m.07p53y7
George W. Bush, government.political_appointer.appointees, m.0bvbn5n
George W. Bush, government.political_appointer.appointees, m.04kqmyr
George W. Bush, people.person.parents, George H. W. Bush
George W. Bush, people.person.sibling_s, m.02kldlj
George W. Bush, people.person.ethnicity, White people
George W. Bush, people.person.children, Jenna Bush Hager
George W. Bush, people.person.ethnicity, Scotch-Irish American
George W. Bush, common.topic.webpage, m.09y3_y_
George W. Bush, government.political_appointer.appointees, m.04st3gy
George W. Bush, people.person.education, m.02h5y19
George W. Bush (Darrell Hammond), base.saturdaynightlive.snl_character.impression_of, George W. Bush
Ambling into History: The Unlikely Odyssey of George W. Bush, book.written_work.subjects, George W. Bush presidential campaign, 2000
George W. Bush, people.appointer.appointment_made, m.07bxts5
m.09x24yw, common.webpage.topic, George W. Bush
George W. Bush presidential campaign, 2004, government.election_campaign.election, United States presidential election, 2004
George H. W. Bush, people.person.ethnicity, White people
m.09yv0mc, common.webpage.topic, George W. Bush
George W. Bush, common.topic.webpage, m.09wzgck
George W. Bush, common.topic.webpage, m.0b45t9w
George W. Bush, common.topic.webpage, m.09ydwfg
George W. Bush, people.appointer.appointment_made, m.07t4504
George H. W. Bush, people.person.profession, Politician
George W. Bush, government.political_appointer.appointees, m.09k3278
m.09ym00w, common.webpage.topic, George W. Bush
George-W-Bush, common.image.appears_in_topic_gallery, Iowa Republican caucuses, 2000
George W. Bush, common.topic.webpage, m.09xm3sq
George W. Bush, people.appointer.appointment_made, m.07bgxqx
George W. Bush, people.appointer.appointment_made, m.07nnxl5
George W. Bush, government.political_appointer.appointees, m.05bp3x6
George W. Bush (Jason Sudeikis), base.saturdaynightlive.snl_character.impression_of, George W. Bush
George W. Bush, government.political_appointer.appointees, m.05bp2ny
m.0b48rq5, common.webpage.topic, George W. Bush
John F. Kerry, common.image.appears_in_topic_gallery, John Kerry
George W. Bush, people.person.nationality, United States of America
George W. Bush, common.topic.webpage, m.09y1msy

Answer: John Kerry