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: Who was the coached of the Baltimore Ravens that held a government position? 
Knowledge Triplets: Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.079220n
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kngf0
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923vc
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rls8q
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kngdp
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcjy
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rls80
Baltimore Ravens, sports.sports_team.coaches, m.011w_zjc
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5x2w
Baltimore Ravens, common.topic.webpage, m.0b45wx5
m.062_hjj, american_football.football_historical_coach_position.coach, Rex Ryan
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920pv
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wx3
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wy5
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.07921yz
m.04229n6, common.webpage.topic, Baltimore Ravens
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079288k
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921l7
Baltimore Ravens, common.topic.notable_types, American football team
Baltimore Ravens, american_football.football_team.away_games, Baltimore Ravens at Cleveland Browns, 2008-11-02
Baltimore Ravens, common.topic.webpage, m.04229n6
American Football coach, people.person.profession, Randy Brown
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793fzj
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hjj
m.062_hjj, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens, american_football.football_team.away_games, Baltimore Ravens at New England Patriots, 2009-10-04
Baltimore Ravens at Tennessee Titans, 2009-01-10, common.topic.notable_for, g.1257dslcn
Coach, fictional_universe.fictional_character.gender, Male
m.0nhrhj_, sports.sports_team_coach_tenure.team, Baltimore Ravens
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921hr
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, common.topic.notable_for, g.125b1mr5x
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.home_team, Cleveland Browns
Baltimore Ravens, american_football.football_team.conference, American Football Conference
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.home_team, Cleveland Browns
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079288x
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kng8_
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.home_team, Pittsburgh Steelers
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.passing, m.07920nz
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923sq
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bhs
Male, people.person.gender, Randy Brown
Baltimore Ravens, american_football.football_team.away_games, Baltimore Ravens at New York Giants, 2008-11-16
Baltimore Ravens at New York Giants, 2008-11-16, common.topic.notable_for, g.1256z3vg3
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bk2
m.010q783h, american_football.football_historical_coach_position.coach, Jim O'Neil
Baltimore Ravens at Miami Dolphins, 2009-01-04, common.topic.notable_for, g.1258jnnkc
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920r8
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlckz
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921jw
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hj8
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.0792dym
Coach, people.profession.specializations, American Football coach
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920sy
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5x1q
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.passing, m.0792dtd
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kngfc
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dxy
m.0_r0s7v, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.079286v
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, common.topic.notable_for, g.1259v06hm
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bcp
Baltimore Ravens at Cleveland Browns, 2009-11-16, common.topic.notable_for, g.1256g41m0
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793fz1
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.passing, m.07923p2
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.passing, m.0792b9p
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.away_team, Baltimore Ravens
m.09ynvv7, common.webpage.topic, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bj6
m.0n_xsm9, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rlsdy
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kng7z
m.011w_zjc, sports.sports_team_coach_tenure.team, Baltimore Ravens
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wzj
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793g15
Baltimore Ravens, sports.sports_team.sport, American football
m.09w9wnc, common.webpage.topic, Baltimore Ravens
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793g0t
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kng9b
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5x0c
Baltimore Ravens, sports.sports_team.league, m.0crt4nx
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kng8n
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.079287r
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.away_team, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.away_team, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920q5
Baltimore Ravens, sports.sports_team.league, m.0crt9hl
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.passing, m.08nlcgv
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920s5
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rlscx
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921j3
Baltimore Ravens at Miami Dolphins, 2008-10-19, common.topic.notable_for, g.1255yz505
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bh4
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.rushing, m.08nlchg
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dwk
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920qy
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bg6
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wxt
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923tk
Baltimore Ravens, common.topic.image, Baltimore Ravens
m.0_r0s7v, american_football.football_historical_coach_position.coach, Ted Marchibroda
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5x1c
m.062_hj8, american_football.football_historical_coach_position.coach, Rex Ryan
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.07921_s
m.062_hj0, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens, common.image.appears_in_topic_gallery, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920qk
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921kk
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.0792898
m.062_hj8, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kngc_
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wws
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.away_team, Baltimore Ravens
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.home_team, New England Patriots
Baltimore Ravens, sports.sports_team_coach_tenure.team, m.011w_zjc
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.home_team, New York Giants
Baltimore Ravens at New England Patriots, 2009-10-04, common.topic.notable_for, g.1256xshrh
Baltimore Ravens at Cleveland Browns, 2008-11-02, common.topic.notable_for, g.1254zbtnw
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5x21
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dxl
Baltimore Ravens, american_football.football_team.current_head_coach, John Harbaugh
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bfk
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079289p
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hht
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dx7
Baltimore Ravens, sports.sports_team.fight_song, Seven Nation Army
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, common.topic.notable_for, g.12554g3x2
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcfp
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcd6
Baltimore Ravens, common.topic.notable_for, g.1258t61gm
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kng9p
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rls9d
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921jh
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.rushing, m.08nlc9g
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.0n_xsm9
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920pf
m.062_hht, american_football.football_historical_coach_position.coach, Rex Ryan
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921hc
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wz5
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.rushing, m.08nlc8m
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793f_3
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rlsdl
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.rushing, m.08nlcbg
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dy8
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wxg
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.passing, m.09rlsb2
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlccv
John Harbaugh, american_football.football_coach.current_team_head_coached, Baltimore Ravens
m.062_hj0, american_football.football_historical_coach_position.coach, Rex Ryan
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.passing, m.08nlc80
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.07921zh
Baltimore Ravens, sports.sports_team.coaches, m.0nhrhj_
Baltimore Ravens, american_football.football_team.division, AFC North
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.passing, m.079286c
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.passing, m.09kngbj
Baltimore Ravens at Dallas Cowboys, 2008-12-20, common.topic.notable_for, g.1255cshr8
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kng89
Baltimore Ravens, sports.professional_sports_team.owner_s, Steve Bisciotti
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, common.topic.notable_for, g.125524x61
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rlsd7
Baltimore Ravens, common.topic.webpage, m.0g9fn36
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07928b1
Baltimore Ravens, common.topic.webpage, m.09w9wnc
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcch
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.passing, m.09kng64
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.away_team, Baltimore Ravens
Detroit Lions at Baltimore Ravens, 2009-12-13, common.topic.notable_for, g.125ct5czw
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dwx
Steve Bisciotti, sports.sports_team_owner.teams_owned, Baltimore Ravens
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.receiving, m.07921_4
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923w8
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921kx
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bbk
m.011w_zjc, sports.sports_team_coach_tenure.coach, Randy Brown
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.passing, m.08nlcg3
m.0g9fn36, common.webpage.topic, Baltimore Ravens
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0793g09
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.0792877
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hj0
m.0nhrhj_, sports.sports_team_coach_tenure.coach, Jim Caldwell
Baltimore Ravens, common.image.size, m.01x3nyz
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcbt
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rls8c
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920rr
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.passing, m.09rls5w
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bb4
Baltimore Ravens, common.topic.webpage, m.09ynvv7
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dw6
Baltimore Ravens, sports.sports_team.league, m.0crtf92
Baltimore Ravens, american_football.football_team.away_games, Baltimore Ravens at Pittsburgh Steelers, 2008-09-29
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.passing, m.07p5wzx
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921k6
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923vw
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcdp
m.010q7813, american_football.football_historical_coach_position.coach, Jim O'Neil
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.passing, m.07921v3
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlck8
Baltimore Ravens at Pittsburgh Steelers, 2009-12-27, american_football.football_game.receiving, m.09kngdb
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.rushing, m.07p5wvd
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rls7p
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5x10
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.rushing, m.07p5x00
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5wwf
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.passing, m.07p5wsk
Baltimore Ravens, common.topic.article, m.01ctj
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlcf4
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.0_r0s7v
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bjl
Baltimore Ravens at New England Patriots, 2010-01-10, common.topic.notable_for, g.1254zjjl3
m.0b45wx5, common.webpage.topic, Baltimore Ravens
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rls91
Baltimore Ravens at New England Patriots, 2010-01-10, american_football.football_game.receiving, m.09rls9r
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.passing, m.07921gw
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5x2j
m.062_hht, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07928bn
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920sl
Baltimore Ravens at New England Patriots, 2009-10-04, american_football.football_game.receiving, m.07p5ww2
Baltimore Ravens at New York Giants, 2008-11-16, american_football.football_game.receiving, m.0792207
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bb_
Baltimore Ravens at Cleveland Browns, 2009-11-16, american_football.football_game.receiving, m.08nlckm
Coach, sports.sports_team_coach_tenure.position, m.011w_zjc

Answer: Randy Brown