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: when was the last time the new england patriots won the superbowl? 
Knowledge Triplets: New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0791t_x
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.0791wtr
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791xtx
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791tj5
New England Patriots, sports.sports_team.championships, 1997 AFC Championship Game
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.0791v7b
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791r9m
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.passing, m.0791wrh
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791xgq
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0794vmb
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791wcy
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.away_team, New England Patriots
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0792jt7
New England Patriots, sports.sports_team.championships, 2004 AFC Championship Game
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.rushing, m.0792jq_
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.0791x1v
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791wh9
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0791w0l
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.season, 2008 NFL season
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.away_team, New England Patriots
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791wdn
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.away_team, New England Patriots
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791tld
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.rushing, m.0791wz4
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791tgq
New England Patriots at Indianapolis Colts, 2008-11-02, common.topic.notable_for, g.125ctn0kq
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0791tyk
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0791vz_
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.07951d6
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791thk
New England Patriots at Buffalo Bills, 2008-12-28, common.topic.notable_for, g.1255d2wsp
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0791v2d
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.rushing, m.0791xfr
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.passing, m.0791xd2
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.rushing, m.0791xf0
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.rushing, m.07933nb
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791rfd
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0791v21
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791tl_
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791r8w
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791xgb
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.season, 2008 NFL season
1997 AFC Championship Game, sports.sports_championship_event.champion, New England Patriots
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791rdb
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.away_team, New England Patriots
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.079359z
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.0791wz_
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0794vlj
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.home_team, New York Jets
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.0791v8z
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.passing, m.07933m3
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.rushing, m.0792jqn
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791rbz
New England Patriots at Miami Dolphins, 2009-12-06, american_football.football_game.passing, m.098jjzg
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791r84
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.0795170
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791nz9
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0791v_v
2002 AFC Championship Game, sports.sports_championship_event.champion, New England Patriots
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.079518_
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.07935f7
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.rushing, m.0791wt9
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791xz_
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.0791v8h
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.07933pk
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791r7r
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0794vpd
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.home_team, San Francisco 49ers
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.passing, m.0791tdk
New England Patriots, sports.sports_team.championships, 2002 AFC Championship Game
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.07935cv
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791wf0
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791wfc
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791tmm
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.rushing, m.07933nq
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0791tx9
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.passing, m.0791v30
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791r8j
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.passing, m.0791r78
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791r97
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.rushing, m.0791nt8
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.passing, m.0791xsb
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791wgx
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.rushing, m.0791vv6
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.rushing, m.0791xdm
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.079517x
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.rushing, m.0791wzk
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.07933qm
New England Patriots at Miami Dolphins, 2009-12-06, american_football.football_game.passing, m.098jjt8
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.passing, m.0792jq4
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0791tzh
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0792jvh
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791tf_
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.away_team, New England Patriots
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791xvc
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.home_team, Indianapolis Colts
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791xtb
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.rushing, m.0791nvt
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791tkw
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.passing, m.0791wxx
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.0791vb8
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.passing, m.0791vtk
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791wfq
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.0795189
New England Patriots at Oakland Raiders, 2008-12-14, common.topic.notable_for, g.125h5bpg7
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.rushing, m.0791vx2
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0794vnc
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791nwb
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.07933rd
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.07933q_
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.away_team, New England Patriots
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.season, 2008 NFL season
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791xhl
New England Patriots at New York Jets, 2008-09-14, common.topic.notable_for, g.1258skz36
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791xzl
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.rushing, m.0791vwc
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.home_team, Buffalo Bills
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.07935bz
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0791txw
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.season, 2008 NFL season
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0792jx1
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.passing, m.0793566
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.season, 2008 NFL season
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0794vmv
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.season, 2008 NFL season
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791nx4
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.07935dg
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.passing, m.0791twd
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.rushing, m.0795154
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.0791wv7
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791rbl
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.passing, m.07933mk
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0791v1q
New England Patriots at New York Jets, 2008-09-14, common.topic.notable_types, NFL Game
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791tf3
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0791v0h
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791wg2
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.rushing, m.0791wyc
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0794vnv
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791xyf
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.07933q8
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.season, 2008 NFL season
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.passing, m.0795141
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.0791x0r
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.07935bd
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.0791wvq
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791nxw
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.0791wx7
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791xz2
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0792jsc
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791tjq
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791wgh
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0791w06
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.rushing, m.0791ntv
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791xvx
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0792jxd
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.07951bv
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0794vqp
2004 AFC Championship Game, sports.sports_championship_event.champion, New England Patriots
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.receiving, m.0791wwg
New England Patriots at Seattle Seahawks, 2008-12-07, common.topic.notable_for, g.1257kvmsg
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.home_team, Miami Dolphins
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.passing, m.0791wcg
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791xh5
New England Patriots at Buffalo Bills, 2008-12-28, common.topic.notable_types, NFL Game
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791x_c
New England Patriots, sports.sports_team.championships, Super Bowl XXXIX
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791xxh
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.season, 2008 NFL season
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.rushing, m.0791vvm
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.passing, m.0791vt2
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0791tz2
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.receiving, m.0791rb5
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.rushing, m.0795165
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.rushing, m.0791tww
New England Patriots at San Francisco 49ers, 2008-10-05, common.topic.notable_for, g.1256fvlqs
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.rushing, m.079515l
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.receiving, m.0791tk7
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0792jwp
New England Patriots at Seattle Seahawks, 2008-12-07, american_football.football_game.rushing, m.0791wry
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.0791v9t
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.07933p5
New England Patriots at San Diego Chargers, 2008-10-12, american_football.football_game.receiving, m.079359l
New England Patriots at New York Jets, 2008-09-14, american_football.football_game.rushing, m.0791xst
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.07933py
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.passing, m.0791nsg
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.rushing, m.0791wyr
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0792jrl
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0791vyr
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0791vzj
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.receiving, m.0794vp_
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791nyk
New England Patriots at Indianapolis Colts, 2008-11-02, american_football.football_game.receiving, m.0791v_c
New England Patriots at Buffalo Bills, 2008-12-28, american_football.football_game.receiving, m.0791nwq
New England Patriots at San Francisco 49ers, 2008-10-05, american_football.football_game.passing, m.0794vkd
New England Patriots at Oakland Raiders, 2008-12-14, american_football.football_game.receiving, m.0791w_g
New England Patriots at Miami Dolphins, 2008-11-23, american_football.football_game.rushing, m.0791wd8

Answer: Super Bowl XXXIX