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: What Super BOwl featured the Seattle Seahawks and Pittsburgh Steelers? 
Knowledge Triplets: Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlh9t
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xsr
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.season, 2008 NFL season
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955v3
Super Bowl XLIII, sports.sports_championship_event.champion, Pittsburgh Steelers
Pittsburgh Steelers, sports.sports_team.championships, Super Bowl XLIII
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xtf
Super Bowl XXX, sports.sports_championship_event.runner_up, Pittsburgh Steelers
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.passing, m.07955l6
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0793dth
Seattle Seahawks at San Francisco 49ers, 2008-10-26, common.topic.notable_types, NFL Game
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.away_team, Seattle Seahawks
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955vx
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k1l
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794_sz
Pittsburgh Steelers, sports.sports_championship_event.champion, Super Bowl XL
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793dyn
Seattle Seahawks, sports.sports_championship_event.runner_up, Super Bowl XL
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k7b
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlh2x
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955sz
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlhfp
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793d_4
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794_rg
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07955lq
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlh06
Super Bowl XLVIII, sports.sports_championship_event.champion, Seattle Seahawks
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794_qw
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.rushing, m.07p5xfm
Super Bowl XLV, sports.sports_championship_event.runner_up, Pittsburgh Steelers
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.season, 2008 NFL season
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794wg2
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794whb
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.home_team, New York Giants
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794why
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794_wc
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955rb
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k50
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.receiving, m.0795247
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.season, 2008 NFL season
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlhh8
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.rushing, m.07951_v
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k4k
Pittsburgh Steelers, sports.sports_team.championships, Super Bowl XIII
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794_sh
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0794_0f
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.home_team, San Francisco 49ers
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlh49
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0794_0t
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k5k
Pittsburgh Steelers, sports.sports_team.championships, Super Bowl IX
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k6y
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlh4_
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07951gp
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xr8
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlhk0
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.passing, m.0794zyw
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.rushing, m.0794_fh
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.rushing, m.0794j_3
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.season, 2009 NFL season
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlh6g
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794_lr
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0794_18
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794wfc
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlh8v
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07951hc
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07951kb
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793dz7
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794wn3
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07955n6
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlhgy
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k3j
Seattle Seahawks at New York Giants, 2008-10-05, common.topic.notable_types, NFL Game
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794_tq
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.rushing, m.079521m
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0793drz
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xgc
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794_m9
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.rushing, m.079520w
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.rushing, m.0794j_t
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.rushing, m.07p5xf8
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xnc
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07951pl
Super Bowl XL, sports.sports_championship_event.runner_up, Seattle Seahawks
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlh18
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.passing, m.07p5xdv
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.rushing, m.0794k0n
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlhkw
Seattle Seahawks at Indianapolis Colts, 2009-10-04, common.topic.notable_types, NFL Game
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.passing, m.0794w93
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794_s3
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794wmk
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.passing, m.0793dnk
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.passing, m.0794jzb
Super Bowl XL, sports.sports_championship_event.champion, Pittsburgh Steelers
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07955m7
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlhcd
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.passing, m.0794_p2
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0794z_m
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xmk
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.passing, m.0794zzr
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.season, 2008 NFL season
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlhd3
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794wcz
Seattle Seahawks, sports.sports_team.championships, 2006 NFC Championship Game
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794wk7
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.rushing, m.0794_gz
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794_mz
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0794_25
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlhgc
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07951n1
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0794z__
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.away_team, Seattle Seahawks
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0793dv9
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlh3h
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, common.topic.notable_types, NFL Game
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k46
Super Bowl, time.event.instance_of_recurring_event, Super Bowl XL
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.away_team, Seattle Seahawks
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.rushing, m.07p5xg0
Super Bowl IX, sports.sports_championship_event.champion, Pittsburgh Steelers
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xjz
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.rushing, m.07p5xm6
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlh5s
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.passing, m.07p5xkn
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xhd
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.rushing, m.07p5xlf
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.away_team, Seattle Seahawks
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794_l8
Pittsburgh Steelers at New England Patriots, 2008-11-30, american_football.football_game.season, 2008 NFL season
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.passing, m.0794rz0
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794_vj
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793dw2
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0794_1r
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xps
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.rushing, m.0794_j8
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xk9
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlgzx
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.rushing, m.0794wdm
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.passing, m.07mlgxd
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794_t9
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794wgr
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.passing, m.0794rzx
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07951l1
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794_vz
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.passing, m.07mlh77
Pittsburgh Steelers at Washington Redskins, 2008-11-03, american_football.football_game.season, 2008 NFL season
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlhhm
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.rushing, m.0794_g3
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.rushing, m.07p5xl2
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlhbp
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0793dsn
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlgz6
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07951g4
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955qf
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xmy
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.passing, m.07mlh6t
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k67
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793dxv
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xh1
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.passing, m.07mlgyd
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xsc
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.season, 2008 NFL season
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlhdx
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xt2
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.rushing, m.07mlgzk
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.rushing, m.07951_3
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955w9
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.passing, m.0794wc2
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794_kd
Seattle Seahawks at Green Bay Packers, 2009-12-27, american_football.football_game.passing, m.09knggh
Pittsburgh Steelers, sports.sports_team.championships, Super Bowl XIV
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794k7_
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.passing, m.0793dpj
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.rushing, m.0793dr1
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955q1
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.receiving, m.07955qv
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.passing, m.0794_cy
Seattle Seahawks at Arizona Cardinals, 2008-12-28, american_football.football_game.passing, m.07951z1
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07955nx
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794wkx
Pittsburgh Steelers at New England Patriots, 2008-11-30, common.topic.notable_types, NFL Game
Super Bowl X, sports.sports_championship_event.champion, Pittsburgh Steelers
Pittsburgh Steelers at Washington Redskins, 2008-11-03, common.topic.notable_types, NFL Game
Seattle Seahawks, sports.sports_team.championships, Super Bowl XLVIII
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793dwk
Seattle Seahawks at Green Bay Packers, 2009-12-27, american_football.football_game.passing, m.09kngm1
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.passing, m.07951fd
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793dx3
Seattle Seahawks at Green Bay Packers, 2009-12-27, american_football.football_game.passing, m.09kngg1
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794_v3
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0793dvp
Super Bowl XIV, sports.sports_championship_event.champion, Pittsburgh Steelers
Seattle Seahawks at San Francisco 49ers, 2009-09-20, american_football.football_game.receiving, m.07mlh1_
Seattle Seahawks at Indianapolis Colts, 2009-10-04, american_football.football_game.receiving, m.07p5xgq
Pittsburgh Steelers, sports.sports_team.championships, Super Bowl XL
Super Bowl XIII, sports.sports_championship_event.champion, Pittsburgh Steelers
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794_nk
Seattle Seahawks at San Francisco 49ers, 2008-10-26, american_football.football_game.receiving, m.0794wjm
Pittsburgh Steelers, sports.sports_team.championships, Super Bowl X
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07951j7
Seattle Seahawks at Tampa Bay Buccaneers, 2008-10-19, american_football.football_game.receiving, m.0794_ks
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.rushing, m.07951jw
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.away_team, Seattle Seahawks
Seattle Seahawks at New York Giants, 2008-10-05, american_football.football_game.receiving, m.0794_2s
Seattle Seahawks at St. Louis Rams, 2008-12-14, american_football.football_game.passing, m.07955kq

Answer: Super Bowl XL