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 coached the dallas cowboys in 1996? 
Knowledge Triplets: Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.0hpdx76
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c8l
Jason Garrett, american_football.football_coach.current_team_head_coached, Dallas Cowboys
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.home_team, Dallas Cowboys
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.04xh25h
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.passing, m.07939hg
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.passing, m.0793cn1
m.04xh23d, american_football.football_historical_coach_position.coach, Tom Landry
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.079384n
Dallas Cowboys at Kansas City Chiefs, 2009-10-11, american_football.football_game.passing, m.07t48k0
Chris Palmer, american_football.football_coach.coaching_history, m.0hpdx76
Chan Gailey, american_football.football_coach.coaching_history, m.04xh24z
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0793c0n
Dallas Cowboys, common.topic.article, m.0289j
m.0pdlj83, american_football.football_historical_coach_position.coach, Rob Ryan
Bill Parcells, people.person.profession, Coach
Chris Palmer, people.person.profession, Coach
Dallas Cowboys, sports.professional_sports_team.owner_s, Jerry Jones
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c9q
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.passing, m.079269m
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.0_r1zb7
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.07926ky
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.away_team, Dallas Cowboys
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.receiving, m.0793bc4
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.passing, m.098jm_k
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.04xh24z
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.0r8_q9l
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793mnm
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0792d04
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.away_team, New York Giants
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.home_team, Washington Redskins
Dallas Cowboys, american_football.football_team.home_games, New York Giants at Dallas Cowboys, 2009-09-20
Tom Landry, american_football.football_coach.coaching_history, m.04xh23d
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.0hpsp04
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793cw7
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c6d
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.07926hm
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at New York Giants, 2008-11-02
Dallas Cowboys, sports.sports_team.league, m.0crtflp
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.receiving, m.0793bb2
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.receiving, m.098jn3n
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0793c1v
m.04xh24q, american_football.football_historical_coach_position.team, Dallas Cowboys
Dallas Cowboys, common.topic.article, m.03hc4wc
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.home_team, New York Giants
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gw_
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.receiving, m.0793b92
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793b49
m.0r8_q9l, american_football.football_historical_coach_position.coach, Les Miles
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gtx
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.receiving, m.098jn1c
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.04xh23d
m.04xh23d, american_football.football_historical_coach_position.team, Dallas Cowboys
Philadelphia Eagles at Dallas Cowboys, 2008-09-15, american_football.football_game.home_team, Dallas Cowboys
m.0hpsp04, american_football.football_historical_coach_position.coach, Gene Stallings
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.07926gd
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gvv
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07953g1
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.rushing, m.07953d6
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793b29
Barry Switzer, american_football.football_coach.coaching_history, m.04xh25h
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.home_team, St. Louis Rams
Dallas Cowboys, common.topic.webpage, m.0b46wg7
Gene Stallings, american_football.football_coach.coaching_history, m.0hpsp04
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793csh
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.rushing, m.07953ct
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793fk_
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.07926fg
Dallas Cowboys at Tampa Bay Buccaneers, 2009-09-13, american_football.football_game.passing, m.07jqchh
Dallas Cowboys, sports.sports_team.league, m.0crt9dg
Gene Stallings, people.person.profession, Coach
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07939m2
Tom Landry, people.person.profession, Coach
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793ccb
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.home_team, Philadelphia Eagles
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.receiving, m.098jn39
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at Cleveland Browns, 2008-09-07
Dallas Cowboys, sports.sports_team.league, m.0crt4y1
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793b3r
Dallas Cowboys, sports.sports_team.sport, American football
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.receiving, m.098jn10
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at St. Louis Rams, 2008-10-19
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07939l3
m.04xh24z, american_football.football_historical_coach_position.coach, Chan Gailey
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.passing, m.0793qcr
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07953mf
Jimmy Johnson, people.person.profession, Coach
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.home_team, Pittsburgh Steelers
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07939qc
m.04xh256, american_football.football_historical_coach_position.coach, Dave Campo
m.0hpsp04, american_football.football_historical_coach_position.team, Dallas Cowboys
m.0pdlj83, american_football.football_historical_coach_position.team, Dallas Cowboys
Dallas Cowboys at Tampa Bay Buccaneers, 2009-09-13, american_football.football_game.home_team, Tampa Bay Buccaneers
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.passing, m.0793qby
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793fmg
Jerry Jones, common.topic.image, Jerry jones owner dallas cowboys
m.04xh24g, american_football.football_historical_coach_position.team, Dallas Cowboys
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.04xh24q
m.04xh25h, american_football.football_historical_coach_position.team, Dallas Cowboys
m.0_r1zb7, american_football.football_historical_coach_position.team, Dallas Cowboys
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793fld
Rob Ryan, american_football.football_coach.coaching_history, m.0pdlj83
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0793c19
Jimmy Johnson, american_football.football_coach.coaching_history, m.04xh24g
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.passing, m.0793fjc
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.04xh24g
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0792d34
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0792d3k
Tampa Bay Buccaneers at Dallas Cowboys, 2008-10-26, american_football.football_game.home_team, Dallas Cowboys
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c7k
Jerry Jones, sports.sports_team_owner.teams_owned, Dallas Cowboys
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07953h6
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.079386j
Dallas Cowboys, american_football.football_team.home_games, Philadelphia Eagles at Dallas Cowboys, 2008-09-15
Dave Campo, people.person.profession, Coach
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793cv8
Rob Ryan, people.person.profession, Coach
Dallas Cowboys, common.topic.webpage, m.09wby13
Dallas Cowboys at Kansas City Chiefs, 2009-10-11, american_football.football_game.passing, m.07t48cp
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793ct8
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0793c27
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.receiving, m.0793b9n
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.passing, m.07953c3
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0793byh
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793fp9
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at New York Giants, 2009-12-06
m.0hpdx76, american_football.football_historical_coach_position.team, Dallas Cowboys
Jason Garrett, people.person.profession, Coach
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.receiving, m.098jmyt
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0792d0v
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.passing, m.0793gqn
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.rushing, m.0793c49
Dallas Cowboys, common.topic.webpage, m.0b4957h
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c6w
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.0793860
m.04xh24g, american_football.football_historical_coach_position.coach, Jimmy Johnson
m.0_r1zb7, american_football.football_historical_coach_position.coach, Dick Nolan
m.04xh24z, american_football.football_historical_coach_position.team, Dallas Cowboys
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793fnc
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.rushing, m.0793c52
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.passing, m.07939zl
Dallas Cowboys, american_football.football_team.division, NFC East
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.0pdlj83
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.0793876
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793mpb
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.receiving, m.0793bbm
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c5z
Dallas Cowboys, american_football.football_team.current_head_coach, Jason Garrett
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at Green Bay Packers, 2008-09-21
Dallas Cowboys, common.topic.webpage, m.09wfjcw
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793crs
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07953l5
m.09wby13, common.webpage.topic, Dallas Cowboys
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.07926j6
Dallas Cowboys, american_football.football_team.home_games, Baltimore Ravens at Dallas Cowboys, 2008-12-20
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.04xh256
Dallas Cowboys, american_football.football_team.home_games, New York Giants at Dallas Cowboys, 2008-12-14
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.passing, m.07939_5
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793c5j
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.passing, m.0793c3m
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.away_team, Dallas Cowboys
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07939mw
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.away_team, Dallas Cowboys
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793b2r
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793fq8
m.04xh25h, american_football.football_coach.coaching_history, Barry Switzer
m.0793958, american_football.game_receiving_statistics.team, Dallas Cowboys
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gxx
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.passing, m.0793bwp
Dallas Cowboys, common.topic.webpage, m.0422834
Bill Parcells, american_football.football_coach.coaching_history, m.04xh24q
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.rushing, m.0793b16
Les Miles, american_football.football_coach.coaching_history, m.0r8_q9l
Dallas Cowboys, common.topic.notable_types, Professional Sports Team
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.away_team, Dallas Cowboys
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.away_team, Dallas Cowboys
Dallas Cowboys at Kansas City Chiefs, 2009-10-11, american_football.football_game.receiving, m.07t48lk
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07939p4
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.passing, m.0793clf
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gyj
m.04xh256, american_football.football_historical_coach_position.team, Dallas Cowboys
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0792d3x
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.passing, m.098jmw_
Dallas Cowboys, sports.sports_team.coaches, m.0jz_vzx
Dave Campo, american_football.football_coach.coaching_history, m.04xh256
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at Washington Redskins, 2008-11-16
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793cbf
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0793b_8
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0792d1j
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.079383s
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0792d1w
Dallas Cowboys, american_football.football_team.conference, National Football Conference
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.passing, m.0793b55
Dallas Cowboys, common.topic.webpage, m.0b4748d
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07939nf
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.passing, m.0792c_q
Dallas Cowboys, common.topic.image, Dallas Cowboys
m.04xh25h, american_football.football_historical_coach_position.coach, Barry Switzer
m.0hpdx76, american_football.football_historical_coach_position.coach, Chris Palmer
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at Philadelphia Eagles, 2008-12-28
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.receiving, m.0793cr5
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0792d26
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07953m2
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.receiving, m.098jn2g
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0792d2k
m.0r8_q9l, american_football.football_historical_coach_position.team, Dallas Cowboys
Dallas Cowboys, american_football.football_team.historical_coaching_staff, m.04xh25h
Dallas Cowboys at Kansas City Chiefs, 2009-10-11, american_football.football_game.receiving, m.07t48gr
m.0422834, common.webpage.topic, Dallas Cowboys
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.passing, m.0793ml6
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gwf
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.07926k6
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.home_team, Cleveland Browns
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0793c2r
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.away_team, Dallas Cowboys
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0792d0h
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0792d15
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0793bzg
Dick Nolan, american_football.football_coach.coaching_history, m.0_r1zb7
Dallas Cowboys at Washington Redskins, 2008-11-16, american_football.football_game.receiving, m.0793bcr
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.away_team, Dallas Cowboys
m.0jz_vzx, sports.sports_team_coach_tenure.coach, Jason Garrett
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.receiving, m.07953j9
Jason Garrett, sports.sports_team_coach.teams_coached, m.0jz_vzx
Dallas Cowboys, american_football.football_team.home_games, Tampa Bay Buccaneers at Dallas Cowboys, 2008-10-26
m.04xh24q, american_football.football_historical_coach_position.coach, Bill Parcells
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.0793852
Dallas Cowboys, american_football.football_team.away_games, Dallas Cowboys at Pittsburgh Steelers, 2008-12-07
New York Giants at Dallas Cowboys, 2008-12-14, american_football.football_game.receiving, m.0793gt5
Dick Nolan, people.person.profession, Coach
Dallas Cowboys at St. Louis Rams, 2008-10-19, american_football.football_game.rushing, m.07953dk
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.receiving, m.079385f
Dallas Cowboys at New York Giants, 2008-11-02, american_football.football_game.receiving, m.0793b35
Dallas Cowboys at Philadelphia Eagles, 2008-12-28, american_football.football_game.passing, m.0793cmc
Dallas Cowboys at Cleveland Browns, 2008-09-07, american_football.football_game.passing, m.07937_s
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.receiving, m.0793c06
Dallas Cowboys at New York Giants, 2009-12-06, american_football.football_game.home_team, New York Giants
Dallas Cowboys at Pittsburgh Steelers, 2008-12-07, american_football.football_game.rushing, m.0793b_n
Barry Switzer, people.person.profession, Coach
m.0jz_vzx, sports.sports_team_coach_tenure.team, Dallas Cowboys

Answer: Barry Switzer