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 did ny giants win the superbowl? 
Knowledge Triplets: New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.rushing, m.0793gsl
1956 NFL Championship Game, sports.sports_championship_event.champion, New York Giants
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr63g
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hfp
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.passing, m.07vr60c
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927nl
New York Giants at Kansas City Chiefs, 2009-10-04, american_football.football_game.receiving, m.07p5x7l
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c7k
1938 NFL Championship Game, sports.sports_championship_event.champion, New York Giants
New York Giants at Kansas City Chiefs, 2009-10-04, american_football.football_game.passing, m.07p5x88
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.07952fp
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0793g66
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793kwb
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927pw
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr655
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0794qyc
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793kwq
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942fr
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.07942bh
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hcd
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.passing, m.0793h5g
Super Bowl XXI, sports.sports_championship_event.champion, New York Giants
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.07942c4
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.07942d5
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942k6
New York Giants, sports.sports_team.championships, 1956 NFL Championship Game
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.passing, m.07vr5v2
Super Bowl XXV, sports.sports_championship_event.champion, New York Giants
New York Giants, sports.sports_team.championships, 2012 NFC Championship Game
New York Giants, sports.sports_team.championships, 1934 NFL Championship Game
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c5z
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0794qs_
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr5zm
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0793g8n
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.passing, m.0793ktc
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793d72
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0794qtf
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c8l
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793k_4
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.passing, m.079428z
New York Giants at Arizona Cardinals, 2008-11-23, common.topic.notable_types, NFL Game
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.home_team, Dallas Cowboys
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0794qvm
2008 NFC Championship Game, sports.sports_championship_event.champion, New York Giants
New York Giants at Kansas City Chiefs, 2009-10-04, common.topic.notable_for, g.125bqpkw5
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793fsx
New York Giants at Washington Redskins, 2009-12-21, american_football.football_game.passing, m.09k0gbh
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793fvk
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927pj
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927qx
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.0793f2p
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.07952hf
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0793g3h
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.0793d52
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0793g3y
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793kvl
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.0793f4j
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0794qv_
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0794qwm
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gyj
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793kvy
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793cbf
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.0793f59
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.passing, m.07952f7
New York Giants at Minnesota Vikings, 2008-12-28, common.topic.notable_for, g.1257t4d9y
New York Giants, sports.sports_team.championships, Super Bowl XXV
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.0793h7n
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.07952h2
New York Giants at New Orleans Saints, 2009-10-18, common.topic.notable_for, g.1259pr5l2
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.0793h6p
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942fb
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927qk
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.away_team, New York Giants
New York Giants, sports.sports_team.championships, 1927 NFL Championship Game
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793ky3
New York Giants at Dallas Cowboys, 2008-12-14, common.topic.notable_for, g.12565xcwy
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.passing, m.0793d_w
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.away_team, New York Giants
New York Giants at Dallas Cowboys, 2009-09-20, american_football.football_game.receiving, m.07mlkm7
New York Giants, sports.sports_team.championships, 2001 NFC Championship Game
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hb4
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0793g7v
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793d9n
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0794qy0
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.07952jy
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.home_team, Arizona Cardinals
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793ft9
New York Giants at Washington Redskins, 2009-12-21, american_football.football_game.passing, m.09k0gby
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gtx
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.season, 2008 NFL season
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.away_team, New York Giants
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.home_team, St. Louis Rams
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927q6
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.0793f39
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927n5
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793kyx
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gwf
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.passing, m.0793g1y
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.rushing, m.0793grz
New York Giants, sports.sports_championship_event.champion, Super Bowl XXI
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.season, 2008 NFL season
New York Giants at Washington Redskins, 2009-12-21, common.topic.notable_for, g.1258c4l0h
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.rushing, m.0793c52
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942h8
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793db7
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.away_team, New York Giants
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.season, 2008 NFL season
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942gw
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.0793h97
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0793g2h
New York Giants, award.award_winner.awards_won, m.0z43h4y
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gvv
New York Giants, sports.sports_team.championships, 2008 NFC Championship Game
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.passing, m.07vr5_y
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793frs
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793kzk
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gxx
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c6w
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c5j
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr5yy
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hdn
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.0793d5m
New York Giants at Kansas City Chiefs, 2009-10-04, american_football.football_game.passing, m.07p5x36
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c9q
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.rushing, m.0793c49
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.passing, m.0793d3l
New York Giants at Philadelphia Eagles, 2008-11-09, common.topic.notable_for, g.125c4kll0
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.rushing, m.0793c4q
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793d8z
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hbk
New York Giants at Dallas Cowboys, 2008-12-14, common.topic.notable_types, NFL Game
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.season, 2008 NFL season
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.0793f40
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.passing, m.0793h5_
New York Giants at St. Louis Rams, 2008-09-14, common.topic.notable_types, NFL Game
2001 NFC Championship Game, sports.sports_championship_event.champion, New York Giants
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.0793h8b
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0793g93
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793ftr
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.07952g0
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gt5
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr5_h
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0793g30
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0793g78
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.passing, m.0793c3m
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942gh
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.0793f25
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.0793d4m
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0793g87
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr644
1927 NFL Championship Game, sports.sports_championship_event.champion, New York Giants
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793kx7
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr5x_
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.passing, m.0794qrs
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793fsj
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr64h
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.season, 2008 NFL season
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hd5
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.receiving, m.07927mr
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793k_y
New York Giants at New Orleans Saints, 2009-10-18, american_football.football_game.receiving, m.07vr64v
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.passing, m.0793fr7
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gw_
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.away_team, New York Giants
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0794qx3
1934 NFL Championship Game, sports.sports_championship_event.champion, New York Giants
New York Giants, sports.sports_team.championships, Super Bowl XLVI
New York Giants at Kansas City Chiefs, 2009-10-04, american_football.football_game.receiving, m.07p5xct
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.home_team, Minnesota Vikings
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793fs4
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hby
New York Giants, sports.sports_team.championships, 1938 NFL Championship Game
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793fwd
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.rushing, m.0793kv7
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793ccb
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793dc1
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.rushing, m.0794qv2
New York Giants at Kansas City Chiefs, 2009-10-04, american_football.football_game.passing, m.07p5x8q
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c6d
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793dbm
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793fv4
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942j5
New York Giants, sports.sports_team.championships, Super Bowl XLII
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0794qxp
New York Giants at Arizona Cardinals, 2008-11-23, american_football.football_game.receiving, m.0793g5k
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.season, 2008 NFL season
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.07952jh
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.07952gq
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793d6m
New York Giants at Philadelphia Eagles, 2008-11-09, american_football.football_game.receiving, m.0793fv_
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.07942g2
New York Giants at Cleveland Browns, 2008-10-13, american_football.football_game.passing, m.07927gw
New York Giants at Cleveland Browns, 2008-10-13, common.topic.notable_for, g.125dhrfdk
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.0793d82
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.rushing, m.07942dx
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.07952j4
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.passing, m.0793gqn
New York Giants at St. Louis Rams, 2008-09-14, common.topic.notable_for, g.12595j_29
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hgj
New York Giants, award.award_winner.awards_won, m.0z43f37
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.receiving, m.07952ht
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.0793d43
New York Giants at Arizona Cardinals, 2008-11-23, common.topic.notable_for, g.1258sfcpj
New York Giants at St. Louis Rams, 2008-09-14, american_football.football_game.rushing, m.07952gc
New York Giants at Minnesota Vikings, 2008-12-28, american_football.football_game.receiving, m.0793hf2

Answer: Super Bowl XXI
Super Bowl XXV
Super Bowl XLVI
Super Bowl XLII