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: Which Baltimore Ravens coach died on 07-30-1967? 
Knowledge Triplets: Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.passing, m.0792dtd
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.passing, m.079226d
Baltimore Ravens, sports.sports_team.coaches, m.0nhrhj_
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920sl
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07925jq
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922jc
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jnxv
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07925kd
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r3t
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn224
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn24l
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.rushing, m.07923r0
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.passing, m.07925gq
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jp28
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.passing, m.0792b9p
m.062_hjj, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921kx
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn22v
Baltimore's Marching Ravens, tv.tv_subject.tv_episodes, The Band That Wouldn't Die
John Harbaugh, american_football.football_coach.current_team_head_coached, Baltimore Ravens
Baltimore Ravens, sports.sports_team_coach_tenure.team, m.011w_zjc
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07922c6
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jp1x
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bjl
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.07920n6
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.07925hz
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.07920m7
m.011w_zjc, sports.sports_team_coach_tenure.coach, Randy Brown
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dwx
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921kk
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.rushing, m.07920j7
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921hc
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.07920mn
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.07925hl
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07928b1
Cincinnati Bengals at Baltimore Ravens, 2008-09-07, common.topic.notable_for, g.125bnwwyh
Baltimore Ravens, sports.professional_sports_team.owner_s, Steve Bisciotti
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn27s
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.07925jb
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.0792bhs
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079288k
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn23j
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079289p
m.062_hj0, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bk2
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn29_
Male, people.person.gender, Randy Brown
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jn_1
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.079229m
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r4t
Baltimore Ravens, sports.sports_team.coaches, m.011w_zjc
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jnws
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921k6
Baltimore Ravens Marching Band, common.image.appears_in_topic_gallery, The Band That Wouldn't Die
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07925k1
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920qy
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn29n
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.passing, m.07922d9
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.0792884
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.0n_xsm9
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.passing, m.0792g7h
m.079226w, american_football.game_passing_statistics.game, Baltimore Ravens at Cincinnati Bengals, 2008-11-30
m.0_r0s7v, american_football.football_historical_coach_position.team, Baltimore Ravens
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn25z
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dx7
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn235
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.receiving, m.07920sy
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dym
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn25m
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r7m
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.0792764
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jp0w
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923vc
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920qk
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gf0
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921hr
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923vw
m.011w_zjc, sports.sports_team_coach_tenure.team, Baltimore Ravens
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.passing, m.07920nz
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.rushing, m.0792734
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922jr
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.passing, m.07925h4
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn258
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922j0
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jnz1
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bbk
Coach, fictional_universe.fictional_character.gender, Male
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bg6
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bcp
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923sq
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.passing, m.0792728
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920q5
m.0nhrhj_, sports.sports_team_coach_tenure.team, Baltimore Ravens
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn28z
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jnxh
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.0792898
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.rushing, m.07920pf
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.079229_
Baltimore Ravens, american_football.football_team.current_head_coach, John Harbaugh
Baltimore Ravens at Green Bay Packers, 2009-12-07, common.topic.notable_for, g.1256dfr8p
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.079275r
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bh4
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.passing, m.079286c
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.0792296
Baltimore Ravens, film.film_subject.films, The Band That Wouldn't Die
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921rm
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn2d1
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dy8
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn2bp
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.passing, m.079226w
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hj8
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn2cq
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.passing, m.098jnth
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bb_
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.07921s9
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921r4
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bdq
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921jh
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921j3
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.07921jw
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.rushing, m.07920hd
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920r8
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hht
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.079228s
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jp16
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.rushing, m.07920gd
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn24y
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn23w
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.07920kj
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923w8
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn2bb
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dxl
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dxy
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r57
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r47
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.07920pv
m.062_hj8, american_football.football_historical_coach_position.team, Baltimore Ravens
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn26n
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.079287r
m.07925h4, american_football.game_passing_statistics.game, Baltimore Ravens at Cincinnati Bengals, 2008-11-30
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921q8
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bfk
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jny5
The Band That Wouldn't Die, common.topic.image, Baltimore Ravens Marching Band
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn218
Coach, people.profession.specializations, American Football coach
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.passing, m.07920ft
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.passing, m.07921gw
m.079226d, american_football.game_passing_statistics.game, Baltimore Ravens at Cincinnati Bengals, 2008-11-30
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.0792bj6
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07922bd
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn27b
Baltimore Ravens, tv.tv_subject.tv_episodes, The Band That Wouldn't Die
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn2cc
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.079278d
Coach, sports.sports_team_coach_tenure.position, m.011w_zjc
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jnyj
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.rushing, m.0792bb4
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.rushing, m.07923pl
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hj0
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07922bv
Washington Redskins at Baltimore Ravens, 2008-12-07, common.topic.notable_for, g.1257jmky0
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.0792753
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.079227b
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.0792877
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.07920l2
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921pj
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.079228c
m.062_hht, american_football.football_historical_coach_position.team, Baltimore Ravens
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.receiving, m.098jnx4
Baltimore Ravens, american_football.football_team.historical_coaching_staff, m.062_hjj
Baltimore's Marching Ravens, film.film_subject.films, The Band That Wouldn't Die
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn269
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn2c0
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.07920lh
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.passing, m.07921m9
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.rushing, m.079227r
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.0793r5r
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.passing, m.07921lv
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.receiving, m.07nn26_
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.rushing, m.079286v
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07925kr
American Football coach, people.person.profession, Randy Brown
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dw6
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.079277t
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn287
Baltimore Ravens at Cincinnati Bengals, 2008-11-30, american_football.football_game.receiving, m.07925l2
m.0n_xsm9, american_football.football_historical_coach_position.team, Baltimore Ravens
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.0792771
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.0792gdm
Cleveland Browns at Baltimore Ravens, 2008-09-21, american_football.football_game.receiving, m.079276l
Baltimore Ravens at Pittsburgh Steelers, 2008-09-29, american_football.football_game.receiving, m.07920rr
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.07923tk
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.receiving, m.07922l1
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn22h
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07928bn
Baltimore Ravens at Pittsburgh Steelers, 2009-01-18, american_football.football_game.receiving, m.0792dwk
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.07921l7
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.rushing, m.07921ng
Baltimore Ravens at Houston Texans, 2008-11-09, american_football.football_game.receiving, m.07921px
Baltimore Ravens at Cleveland Browns, 2008-11-02, american_football.football_game.receiving, m.079288x
Baltimore Ravens at Green Bay Packers, 2009-12-07, american_football.football_game.passing, m.098jn_d
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.passing, m.07nn21q
Washington Redskins at Baltimore Ravens, 2008-12-07, american_football.football_game.passing, m.0793r1c
Cleveland Browns at Baltimore Ravens, 2009-09-27, american_football.football_game.rushing, m.07nn299

Answer: Randy Brown