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 American football coach has coached the Carolina Panthers since 2001? 
Knowledge Triplets: Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.0793g_0
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.0j81th4
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Green Bay Packers, 2008-11-30
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2008-12-28
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.0793h07
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943mt
Carolina Panthers, american_football.football_team.home_games, Chicago Bears at Carolina Panthers, 2008-09-14
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h45
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.passing, m.07932kn
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.rushing, m.079453b
Ron Rivera, american_football.football_coach.coaching_history, m.0hpyjm4
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g38dw
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g388m
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h43
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g38dj
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g388z
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079347v
Carolina Panthers, american_football.football_team.home_games, Tampa Bay Buccaneers at Carolina Panthers, 2008-12-08
Chicago Bears at Carolina Panthers, 2008-09-14, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.away_team, Carolina Panthers
m.0hpyjn8, american_football.football_historical_coach_position.coach, Ron Rivera
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.passing, m.0794gy8
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.passing, m.09g38cr
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.away_team, Carolina Panthers
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.passing, m.07947gb
m.0j81th4, american_football.football_historical_coach_position.coach, John Fox
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2008-11-23
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.07949yy
Carolina Panthers at New York Jets, 2009-11-29, american_football.football_game.passing, m.096q4xc
m.04xg_yc, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.receiving, m.09knfbf
m.04xg_yl, american_football.football_historical_coach_position.coach, George Seifert
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.0794915
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.passing, m.07948jj
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943ks
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlfz6
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlg55
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18
Carolina Panthers, american_football.football_team.home_games, Arizona Cardinals at Carolina Panthers, 2008-10-26
Carolina Panthers, american_football.football_team.home_games, Philadelphia Eagles at Carolina Panthers, 2009-09-13
Carolina Panthers, american_football.football_team.home_games, Detroit Lions at Carolina Panthers, 2008-11-16
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h1r
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38hm
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079454s
Ron Rivera, american_football.football_coach.coaching_history, m.0hpyjmf
Carolina Panthers, american_football.football_team.home_games, Minnesota Vikings at Carolina Panthers, 2009-12-20
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949sz
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.passing, m.09knf30
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g38f6
m.0hpyjmq, american_football.football_historical_coach_position.coach, Ron Rivera
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlfxg
Carolina Panthers, american_football.football_team.current_head_coach, Ron Rivera
m.0j81th4, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at San Diego Chargers, 2008-09-07
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Oakland Raiders, 2008-11-09
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949vx
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079490b
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h2d
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079491s
Kansas City Chiefs at Carolina Panthers, 2008-10-05, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Atlanta Falcons at Carolina Panthers, 2009-11-15
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.home_team, New England Patriots
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.passing, m.0793421
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38cc
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.07949_1
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New England Patriots, 2009-12-13
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Jets, 2009-11-29
George Seifert, people.person.profession, American Football coach
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.rushing, m.07948ys
George Seifert, american_football.football_coach.coaching_history, m.04xg_yl
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.receiving, m.07948n6
Carolina Panthers, american_football.football_team.division, NFC South
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079455d
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.passing, m.0793gzh
New Orleans Saints at Carolina Panthers, 2008-10-19, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.passing, m.09knf6x
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079348b
Carolina Panthers at New York Jets, 2009-11-29, american_football.football_game.passing, m.096q540
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.0794925
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlg47
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlg8y
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.passing, m.07949pw
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.0793h0y
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yc
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079348r
Ron Rivera, american_football.football_coach.coaching_history, m.0hpyjmq
Philadelphia Eagles at Carolina Panthers, 2009-09-13, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g389n
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.07949qr
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38g7
Ron Rivera, american_football.football_coach.coaching_history, m.0hpyjm_
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07947jc
Tampa Bay Buccaneers at Carolina Panthers, 2008-12-08, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlfy4
Carolina Panthers, american_football.football_team.home_games, Atlanta Falcons at Carolina Panthers, 2008-09-28
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.passing, m.079451x
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlg5j
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07947h_
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949v2
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079492k
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlg3j
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38bb
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07947kj
m.0hpyjm_, american_football.football_historical_coach_position.coach, Ron Rivera
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.passing, m.07mlg1g
m.04xg_yc, american_football.football_historical_coach_position.coach, Dom Capers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h34
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.passing, m.09g3885
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g38d5
Atlanta Falcons at Carolina Panthers, 2009-11-15, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h3n
m.04xg_yl, american_football.football_historical_coach_position.coach, George Seifert
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g389_
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38hz
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.passing, m.07946rs
Chicago Bears at Carolina Panthers, 2008-09-14, american_football.football_game.passing, m.07946zz
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943nr
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.passing, m.07948xb
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h2x
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.passing, m.07949x6
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079346z
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079458k
Ron Rivera, people.person.profession, American Football coach
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.receiving, m.07932rc
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943p5
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.home_team, New York Giants
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2009-11-08
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943lm
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943k3
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943m6
Chicago Bears at Carolina Panthers, 2008-09-14, american_football.football_game.passing, m.0793s6g
Carolina Panthers, american_football.football_team.home_games, Arizona Cardinals at Carolina Panthers, 2009-01-10
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Minnesota Vikings, 2008-09-21
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.passing, m.07mlfpf
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlg5w
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlfxt
m.04xg_yc, american_football.football_historical_coach_position.coach, Dom Capers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Dallas Cowboys, 2009-09-28
Ron Rivera, american_football.football_coach.coaching_history, m.0hpyjn8
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949wd
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38gl
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2008-12-21
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.07948_x
Dom Capers, american_football.football_coach.coaching_history, m.04xg_yc
Carolina Panthers, american_football.football_team.home_games, New Orleans Saints at Carolina Panthers, 2008-10-19
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079458x
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2009-12-27
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.passing, m.07943gs
Carolina Panthers, american_football.football_team.home_games, New Orleans Saints at Carolina Panthers, 2010-01-03
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h4j
Philadelphia Eagles at Carolina Panthers, 2009-09-13, american_football.football_game.passing, m.07jqb9c
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h3r
Carolina Panthers, american_football.football_historical_coach_position.team, m.04xg_yc
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.0794560
Carolina Panthers, american_football.football_team.home_games, Denver Broncos at Carolina Panthers, 2008-12-14
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h2b
American football, sports.sport.team_coaches, John Fox
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlfx3
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.rushing, m.0794gzw
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.07949qb
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07947k4
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079457x
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949rz
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079345r
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Arizona Cardinals, 2009-11-01
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.rushing, m.07949yd
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.passing, m.07947tn
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h3b
m.0_3r22s, sports.sports_team_coach_tenure.team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38bp
John Fox, sports.sports_team_coach.sports_coached, American football
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2009-09-20
Carolina Panthers at New York Jets, 2009-11-29, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.passing, m.07932ly
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlfyw
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.receiving, m.09knfbs
Tampa Bay Buccaneers at Carolina Panthers, 2009-12-06, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h4m
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.away_team, Carolina Panthers
m.04xg_yl, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h1c
Ron Rivera, american_football.football_coach.current_team_head_coached, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Washington Redskins at Carolina Panthers, 2009-10-11
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38fx
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07943pj
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlg66
Carolina Panthers, american_football.football_team.home_games, Kansas City Chiefs at Carolina Panthers, 2008-10-05
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.0793455
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g38fk
Carolina Panthers, american_football.football_historical_coach_position.team, m.04xg_yl
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.07949zh
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yl
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.receiving, m.07948mw
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.receiving, m.07947jt
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38c0
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38h8
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079456x
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.07949rc
Dom Capers, people.person.profession, American Football coach
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h56
Carolina Panthers, american_football.football_team.conference, National Football Conference
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Tampa Bay Buccaneers at Carolina Panthers, 2009-12-06
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g3899
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.receiving, m.07mlfyh
John Fox, american_football.football_coach.coaching_history, m.0j81th4
m.0hpyjm4, american_football.football_historical_coach_position.coach, Ron Rivera
m.0hpyjmf, american_football.football_historical_coach_position.coach, Ron Rivera
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38gy

Answer: George Seifert
Dom Capers