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 pro quarterback began his career in 1993 and was a memebr fo the 2012 Baltimore Ravens? 
Knowledge Triplets: Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.0792r15
Pittsburgh Steelers at Baltimore Ravens, 2009-11-29, american_football.football_game.receiving, m.096qbr3
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j50
Baltimore Ravens at Indianapolis Colts, 2010-01-16, american_football.football_game.passing, m.09tc5pk
m.09rls5w, american_football.game_passing_statistics.game, Baltimore Ravens at New England Patriots, 2010-01-10
Detroit Lions at Baltimore Ravens, 2009-12-13, american_football.football_game.passing, m.09g3943
m.07923p2, american_football.game_passing_statistics.team, Baltimore Ravens
m.09tc5pk, american_football.game_passing_statistics.team, Baltimore Ravens
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r5r
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j2z
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.07922rt
Pittsburgh Steelers at Baltimore Ravens, 2009-11-29, american_football.football_game.passing, m.096qb7h
m.08nlcgv, american_football.game_passing_statistics.team, Baltimore Ravens
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.079328d
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07921fj
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j8k
Pittsburgh Steelers at Baltimore Ravens, 2009-11-29, american_football.football_game.receiving, m.096qbpj
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07921fw
m.096qb7h, american_football.game_passing_statistics.team, Baltimore Ravens
m.07921v3, american_football.game_passing_statistics.team, Baltimore Ravens
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.passing, m.09rdldz
m.07922d9, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.passing, m.07z2j0t
Baltimore Ravens at San Diego Chargers, 2009-09-20, american_football.football_game.passing, m.07mlj62
Philadelphia Eagles at Baltimore Ravens, 2008-11-23, american_football.football_game.passing, m.0792219
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r57
Detroit Lions at Baltimore Ravens, 2009-12-13, american_football.football_game.passing, m.09g3990
Pittsburgh Steelers at Baltimore Ravens, 2009-11-29, american_football.football_game.passing, m.096qbj1
Baltimore Ravens at Dallas Cowboys, 2008-12-20, american_football.football_game.passing, m.07922vh
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.passing, m.079322k
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.passing, m.079218b
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.07920xt
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.receiving, m.07jqb68
m.09k0f3q, american_football.game_passing_statistics.team, Baltimore Ravens
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.rushing, m.079324g
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j75
Indianapolis Colts at Baltimore Ravens, 2009-11-22, american_football.football_game.passing, m.0901mfp
m.07921lv, american_football.game_passing_statistics.team, Baltimore Ravens
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.passing, m.07922d9
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.0792r3c
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.passing, m.08nlcg3
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.passing, m.079286c
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.passing, m.08nlcgv
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.receiving, m.07jqb7h
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j8x
Jacksonville Jaguars at Baltimore Ravens, 2008-12-28, american_football.football_game.passing, m.0792pym
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.rushing, m.079219m
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.passing, m.07921v3
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.passing, m.07p5wsk
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j7j
m.09kngbj, american_football.game_passing_statistics.team, Baltimore Ravens
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r47
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.05v4mxt
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn218
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.passing, m.098jn_d
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.passing, m.0792dtd
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.0793296
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.rushing, m.07921bx
Indianapolis Colts at Baltimore Ravens, 2009-11-22, american_football.football_game.passing, m.0901mzx
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j4b
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.passing, m.09rls5w
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922jr
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.05cdl81
Philadelphia Eagles at Baltimore Ravens, 2008-11-23, american_football.football_game.passing, m.0793l9n
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.0792d7s
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r4t
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.05bv5bc
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.receiving, m.07jq9xg
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.0792r1y
m.0792061, american_football.game_passing_statistics.team, Baltimore Ravens
m.079226d, american_football.game_passing_statistics.team, Baltimore Ravens
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.passing, m.07920ft
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.05bj8xr
m.0792219, american_football.game_passing_statistics.team, Baltimore Ravens
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r3t
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.0792d83
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.010hbnvb
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07932b7
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.receiving, m.07jqb8q
Detroit Lions at Baltimore Ravens, 2009-12-13, american_football.football_game.passing, m.09g393p
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.010q8200
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.passing, m.09kngbj
m.07p5wzx, american_football.game_passing_statistics.team, Baltimore Ravens
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.079327j
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j17
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.079329k
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.rushing, m.079323g
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07932cy
Chicago Bears at Baltimore Ravens, 2009-12-20, american_football.football_game.passing, m.09k0f44
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.0792d72
m.088wzh0, american_football.game_passing_statistics.team, Baltimore Ravens
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922j0
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.05cdl6y
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.passing, m.07p5wzx
Pittsburgh Steelers at Baltimore Ravens, 2009-11-29, american_football.football_game.receiving, m.096qbrz
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.07920xf
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.passing, m.09rdl89
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j3_
m.08nlcg3, american_football.game_passing_statistics.team, Baltimore Ravens
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.receiving, m.07jqb5g
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.passing, m.07jqb0m
m.062_hj8, american_football.football_historical_coach_position.team, Baltimore Ravens
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.0792r03
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.05bv5sh
m.079233s, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j3n
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.07920z6
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j28
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.rushing, m.07921bk
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.passing, m.07923p2
Chicago Bears at Baltimore Ravens, 2009-12-20, american_football.football_game.passing, m.09k0f3q
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.07922rf
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.07920x1
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.rushing, m.079325g
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.07920yw
m.0n_xsm9, american_football.football_historical_coach_position.team, Baltimore Ravens
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.0792d7f
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j39
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07921g7
Baltimore Ravens, american_football.football_team.current_head_coach, John Harbaugh
Detroit Lions at Baltimore Ravens, 2009-12-13, american_football.football_game.receiving, m.09g398b
Philadelphia Eagles at Baltimore Ravens, 2008-11-23, american_football.football_game.passing, m.0793lb6
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.passing, m.0792qy5
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.rushing, m.09rls7b
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922jc
m.07mljjv, american_football.game_passing_statistics.team, Baltimore Ravens
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.0792d6r
m.07mljkv, american_football.game_passing_statistics.team, Baltimore Ravens
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn27b
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.passing, m.079218t
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.rushing, m.07920wb
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.passing, m.0792d47
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j6h
m.07922vh, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j1l
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j7w
Baltimore Ravens, sports.professional_sports_team.owner_s, Steve Bisciotti
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.passing, m.08nlc80
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r7m
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.0792r2z
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j2m
Baltimore Ravens at Indianapolis Colts, 2008-10-12, american_football.football_game.passing, m.0792j4h
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.passing, m.0792b9p
Baltimore Ravens at Oakland Raiders, 2010-01-03, american_football.football_game.passing, m.09rdl8r
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922k4
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07921f4
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.passing, m.07920tq
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.passing, m.07z2j5c
m.09g3943, american_football.game_passing_statistics.team, Baltimore Ravens
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.rushing, m.07jqb4t
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn27s
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.rushing, m.079326k
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.0792r2g
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.passing, m.0793r1c
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.0792d6d
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.passing, m.07922mc
Pittsburgh Steelers at Baltimore Ravens, 2009-11-29, american_football.football_game.rushing, m.096qb9h
m.079218b, american_football.game_passing_statistics.team, Baltimore Ravens
m.0_r0s7v, american_football.football_historical_coach_position.team, Baltimore Ravens
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.07920yj
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.079328w
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.07920y4
m.07jq9q_, american_football.game_passing_statistics.team, Baltimore Ravens
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r6q
John Harbaugh, american_football.football_coach.current_team_head_coached, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.passing, m.07920nz
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn21q
Jacksonville Jaguars at Baltimore Ravens, 2008-12-28, american_football.football_game.passing, m.0792336
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.passing, m.0793fwt
m.07921m9, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j6v
Chicago Bears at Baltimore Ravens, 2009-12-20, american_football.football_game.passing, m.09k0f80
m.07z2j0t, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j1y
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.07922s5
m.079226w, american_football.game_passing_statistics.team, Baltimore Ravens
m.07920zt, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j97
m.079218t, american_football.game_passing_statistics.team, Baltimore Ravens
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07932bx
Jacksonville Jaguars at Baltimore Ravens, 2008-12-28, american_football.football_game.passing, m.079233s
m.09rdl8r, american_football.game_passing_statistics.game, Baltimore Ravens at Oakland Raiders, 2010-01-03
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.passing, m.07921gw
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.passing, m.09rlsb2
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.passing, m.098jnth
m.09rdldz, american_football.game_passing_statistics.team, Baltimore Ravens
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.passing, m.07jq9q_
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.rushing, m.0793r2g
Baltimore Ravens, sports.professional_sports_team.draft_picks, m.05bv75x
m.098jn_d, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j4p
m.09k0f44, american_football.game_passing_statistics.team, Baltimore Ravens
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j64
m.09g393p, american_football.game_passing_statistics.team, Baltimore Ravens
m.07920tq, american_football.game_passing_statistics.team, Baltimore Ravens
m.07t46r5, american_football.game_passing_statistics.team, Baltimore Ravens
m.07921gw, american_football.game_passing_statistics.team, Baltimore Ravens
Baltimore Ravens at Indianapolis Colts, 2010-01-16, american_football.football_game.passing, m.09tc5k1
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.receiving, m.07z2j86
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07921dd
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07921ds
Chicago Bears at Baltimore Ravens, 2009-12-20, american_football.football_game.passing, m.09k0f8g
Denver Broncos at Baltimore Ravens, 2009-11-01, american_football.football_game.rushing, m.07z2j5t
Tennessee Titans at Baltimore Ravens, 2008-10-05, american_football.football_game.receiving, m.0792r3s
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.passing, m.09kng64
m.07vr6dj, american_football.game_passing_statistics.team, Baltimore Ravens
Pittsburgh Steelers at Baltimore Ravens, 2009-11-29, american_football.football_game.receiving, m.096qbq8
m.07923bk, american_football.game_passing_statistics.team, Baltimore Ravens
m.062_hjj, american_football.football_historical_coach_position.team, Baltimore Ravens
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.rushing, m.07922ps
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.07921cn
Oakland Raiders at Baltimore Ravens, 2008-10-26, american_football.football_game.receiving, m.079329x
Pittsburgh Steelers at Baltimore Ravens, 2008-12-14, american_football.football_game.receiving, m.07922sk
m.0792135, american_football.game_passing_statistics.team, Baltimore Ravens
Kansas City Chiefs at Baltimore Ravens, 2009-09-13, american_football.football_game.receiving, m.07jqb70
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn25m
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.passing, m.0792728

Answer: Trent Dilfer