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: where do baltimore ravens play? 
Knowledge Triplets: Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.home_team, Cincinnati Bengals
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6c4
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mlj9g
Baltimore Ravens at New York Giants, 2008-11-16, common.topic.notable_for, g.1256z3vg3
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.rushing, m.0791syp
Baltimore Ravens at Dallas Cowboys, 2008-12-20, american_football.football_game.receiving, m.079230w
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.07921yz
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079289p
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793fz1
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.home_team, Green Bay Packers
m.07mljc1, american_football.game_receiving_statistics.game, Baltimore Ravens at San Diego Chargers, 2009-09-20
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.home_team, San Diego Chargers
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.0793fxc
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dx7
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.season, 2008 NFL season
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921k6
Baltimore Ravens, american_football.football_team.away_games, Baltimore Ravens at New York Giants, 2008-11-16
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dwk
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mlj8k
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.0792898
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920r8
Baltimore Ravens at Cincinnati Bengals, 2009-11-08, american_football.football_game.receiving, m.088wz9x
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.0791t39
Baltimore Ravens at Miami Dolphins, 2008-10-19, american_football.football_game.receiving, m.079215t
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6j4
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6b3
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dxl
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.receiving, m.09rdlcy
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920sy
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.07921x6
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923vc
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.0791t08
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6h2
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gf0
Baltimore Ravens at Cincinnati Bengals, 2009-11-08, american_football.football_game.receiving, m.088wzrk
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.07921nt
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921kx
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792g9j
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.07921mr
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921kk
m.07mljt0, american_football.game_receiving_statistics.game, Baltimore Ravens at San Diego Chargers, 2009-09-20
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.0792884
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923tk
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.away_team, Baltimore Ravens
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.season, 2008 NFL season
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6ht
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793g15
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.07923fr
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.07923gv
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.home_team, Pittsburgh Steelers
Baltimore Ravens at Indianapolis Colts, 2010-01-16, american_football.football_game.home_team, Indianapolis Colts
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.07921w0
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mljlz
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.home_team, New York Giants
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mljml
Baltimore Ravens at Miami Dolphins, 2008-10-19, american_football.football_game.receiving, m.0792178
Baltimore Ravens at Cincinnati Bengals, 2009-11-08, american_football.football_game.receiving, m.088wzd7
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.07921ng
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljvq
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljq2
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.0792g93
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.home_team, Minnesota Vikings
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.0792g8c
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6bg
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921q8
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.rushing, m.07923ch
m.07mljf1, american_football.game_receiving_statistics.game, Baltimore Ravens at San Diego Chargers, 2009-09-20
Baltimore Ravens at New York Giants, 2008-11-16, common.topic.notable_types, NFL Game
Baltimore Ravens, sports.sports_facility.teams, M&T Bank Stadium
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.receiving, m.09rdld8
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljj7
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dym
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.receiving, m.09rdlc7
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.home_team, Miami Dolphins
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcc4
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.passing, m.0793fwt
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.away_team, Baltimore Ravens
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6gd
Baltimore Ravens at Cincinnati Bengals, 2009-11-08, american_football.football_game.home_team, Cincinnati Bengals
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6bt
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.rushing, m.07923pl
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920s5
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921s9
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.home_team, Houston Texans
m.07mljr7, american_football.game_receiving_statistics.game, Baltimore Ravens at San Diego Chargers, 2009-09-20
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mlj83
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljql
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0792207
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.0793fyl
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dxy
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljt0
m.0793fz1, american_football.game_receiving_statistics.game, Baltimore Ravens at New York Giants, 2008-11-16
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljgg
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793g0t
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07928bn
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921r4
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079288k
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793g09
m.0793g09, american_football.game_receiving_statistics.game, Baltimore Ravens at New York Giants, 2008-11-16
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923w8
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.rushing, m.07923r0
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gbs
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mlj7c
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.07923g3
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.passing, m.07mljkv
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gdm
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.away_team, Baltimore Ravens
Baltimore Ravens at San Diego Chargers, 2009-09-20, common.topic.notable_types, NFL Game
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.rushing, m.07923db
m.0793g0t, american_football.game_receiving_statistics.game, Baltimore Ravens at New York Giants, 2008-11-16
Baltimore Ravens at Dallas Cowboys, 2008-12-20, american_football.football_game.receiving, m.0792303
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.07921y1
Baltimore Ravens at San Diego Chargers, 2009-09-20, common.topic.notable_for, g.125cbz_15
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dy8
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.0792g7z
Baltimore Ravens at Dallas Cowboys, 2008-12-20, american_football.football_game.receiving, m.0793ck3
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gb9
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mljp6
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.0792877
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljr7
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.079220n
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.passing, m.07mlj62
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gc6
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921t4
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921rm
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.0792g8q
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.home_team, Oakland Raiders
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.passing, m.07mljjv
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.07921p5
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.passing, m.07921m9
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921hc
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljdj
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljrq
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljcr
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.rushing, m.07923c2
Baltimore Ravens at Cincinnati Bengals, 2009-11-08, american_football.football_game.receiving, m.088wzg3
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.passing, m.07921lv
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6hf
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mljn3
Baltimore Ravens at Miami Dolphins, 2008-10-19, american_football.football_game.receiving, m.079216h
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.07921zh
m.07mljq2, american_football.game_receiving_statistics.game, Baltimore Ravens at San Diego Chargers, 2009-09-20
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793fzj
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923vw
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6gr
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6d5
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793f_3
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07928b1
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.07923gg
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.07921ws
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792g9x
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr6cv
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.rushing, m.0791sy2
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921px
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljf1
Baltimore Ravens at Houston Texans, 2008-11-09, common.topic.notable_types, NFL Game
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.0791t17
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljfm
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.passing, m.07921v3
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gcp
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.passing, m.0792g7h
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.receiving, m.09rdlhg
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.season, 2009 NFL season
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923sq
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921pj
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920rr
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.07921_4
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljc1
Baltimore Ravens at Dallas Cowboys, 2008-12-20, american_football.football_game.home_team, Dallas Cowboys
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.07921_s
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.07921n3
m.0793fzj, american_football.game_receiving_statistics.game, Baltimore Ravens at New York Giants, 2008-11-16
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.0793fy4
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.rushing, m.07923s1
Baltimore Ravens, sports.sports_team.arena_stadium, M&T Bank Stadium
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.07921xm
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gd7
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.home_team, Pittsburgh Steelers
Baltimore Ravens at Cincinnati Bengals, 2009-11-08, american_football.football_game.receiving, m.088wzf7
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.0791t25
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.0791t2t
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dw6
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljhk
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.rushing, m.07mljb6
Baltimore Ravens at Miami Dolphins, 2008-10-19, american_football.football_game.receiving, m.079216w
Baltimore Ravens, american_football.football_team.away_games, Baltimore Ravens at San Diego Chargers, 2009-09-20
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921l7
Baltimore Ravens at Miami Dolphins, 2008-10-19, american_football.football_game.receiving, m.079217p
Baltimore Ravens at Miami Dolphins, 2008-10-19, american_football.football_game.receiving, m.079215f
Baltimore Ravens at Cincinnati Bengals, 2009-11-08, american_football.football_game.receiving, m.088wzch
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079288x
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.passing, m.07923p2
Baltimore Ravens at Miami Dolphins, 2008-10-19, american_football.football_game.receiving, m.0791q75
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dwx
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.rushing, m.0793fxr
Baltimore Ravens at Minnesota Vikings, 2009-10-18, american_football.football_game.receiving, m.07vr69s
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlck8
Baltimore Ravens at Miami Dolphins, 2009-01-04, american_football.football_game.receiving, m.07923fc
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.receiving, m.07mljs8

Answer: M&T Bank Stadium