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 has coached the Carolina Panthers since 1998? 
Knowledge Triplets: Tampa Bay Buccaneers at Carolina Panthers, 2009-12-06, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Oakland Raiders, 2008-11-09
Carolina Panthers, american_football.football_team.home_games, Arizona Cardinals at Carolina Panthers, 2008-10-26
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h4m
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.passing, m.09g38cr
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at San Diego Chargers, 2008-09-07
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.passing, m.0794jmf
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h34
Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18, american_football.football_game.home_team, Tampa Bay Buccaneers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Dallas Cowboys, 2009-09-28
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.rushing, m.0794g_l
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h3r
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h43
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.07949rc
Tampa Bay Buccaneers at Carolina Panthers, 2008-12-08, american_football.football_game.away_team, Tampa Bay Buccaneers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h45
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079457x
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jx6
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.07946y5
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949sz
Philadelphia Eagles at Carolina Panthers, 2009-09-13, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.passing, m.0794gy8
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.0794925
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.0794jrr
Carolina Panthers, american_football.football_team.home_games, Tampa Bay Buccaneers at Carolina Panthers, 2008-12-08
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.07946yr
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.passing, m.07948xb
Carolina Panthers, american_football.football_team.home_games, Detroit Lions at Carolina Panthers, 2008-11-16
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.07947_4
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jvn
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38gl
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079346z
Carolina Panthers, american_football.football_team.current_head_coach, Ron Rivera
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h2b
Ron Rivera, american_football.football_coach.current_team_head_coached, Carolina Panthers
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g389_
m.0j81th4, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.07946wz
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38bb
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.0j81th4
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.0794jn_
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.0793h0y
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.07947wg
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949vx
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.07949qr
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.passing, m.07949pw
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.0794jnk
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.0794jsl
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.receiving, m.09g38bp
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.07948_x
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jtp
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.passing, m.07949x6
Kansas City Chiefs at Carolina Panthers, 2008-10-05, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New England Patriots, 2009-12-13
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.home_team, San Diego Chargers
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.passing, m.07947tn
Carolina Panthers at New Orleans Saints, 2009-11-08, american_football.football_game.home_team, New Orleans Saints
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jww
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079348r
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.07947v6
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h3b
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.passing, m.079451x
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.home_team, Tampa Bay Buccaneers
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.away_team, Atlanta Falcons
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, sports.professional_sports_team.owner_s, Jerry Richardson
m.0_3r22s, sports.sports_team_coach_tenure.team, Carolina Panthers
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38hz
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yl
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jxs
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.receiving, m.07946v_
m.04xg_yl, american_football.football_historical_coach_position.coach, George Seifert
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.home_team, Oakland Raiders
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.season, 2008 NFL season
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h1c
Carolina Panthers at Green Bay Packers, 2008-11-30, american_football.football_game.home_team, Green Bay Packers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079491s
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.home_team, New Orleans Saints
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2008-11-23
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38gy
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.passing, m.07946rs
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2009-11-08
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.07946xs
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079348b
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.07946xc
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.receiving, m.07947ww
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.07946zb
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jw1
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949wd
Atlanta Falcons at Carolina Panthers, 2008-09-28, common.topic.notable_for, g.1258qrb_4
m.04xg_yc, american_football.football_historical_coach_position.coach, Dom Capers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2008-12-28
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g38fk
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2009-09-20
Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, common.topic.notable_for, g.125bq2bh0
Carolina Panthers, american_football.football_team.home_games, New Orleans Saints at Carolina Panthers, 2010-01-03
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.0794jmx
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.0793g_m
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.passing, m.09g3885
Carolina Panthers, american_football.football_team.home_games, New Orleans Saints at Carolina Panthers, 2008-10-19
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.passing, m.0793gzh
Carolina Panthers, american_football.football_team.division, NFC South
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.passing, m.07932ly
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h56
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079347v
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.07949zh
Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18, common.topic.notable_for, g.1259jc_0f
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2008-12-21
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.rushing, m.07949x_
Carolina Panthers, sports.sports_team.sport, American football
Carolina Panthers, american_football.football_historical_coach_position.team, m.04xg_yl
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.0793g_0
Jerry Richardson, sports.sports_team_owner.teams_owned, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079492k
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.home_team, Atlanta Falcons
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.rushing, m.07948ys
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.07947yf
Carolina Panthers at New England Patriots, 2009-12-13, common.topic.notable_for, g.125f5f2lb
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.passing, m.07948jj
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.passing, m.07932kn
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.season, 2008 NFL season
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2009-12-27
Carolina Panthers at Atlanta Falcons, 2008-11-23, common.topic.notable_for, g.125gpgwjb
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.07949_1
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794810
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h0q
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g389n
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38g7
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.0794915
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Jets, 2009-11-29
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Green Bay Packers, 2008-11-30
Carolina Panthers, sports.sports_team.coaches, m.0_3r22s
Carolina Panthers, american_football.football_team.home_games, Kansas City Chiefs at Carolina Panthers, 2008-10-05
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.07949qb
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Minnesota Vikings, 2008-09-21
Carolina Panthers, american_football.football_team.home_games, Chicago Bears at Carolina Panthers, 2008-09-14
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38c0
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.away_team, Carolina Panthers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h1r
Carolina Panthers at New York Giants, 2008-12-21, common.topic.notable_for, g.1258b__jn
Carolina Panthers, american_football.football_team.conference, National Football Conference
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.home_team, New York Giants
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h4j
m.04xg_yc, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.07947xp
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.079480k
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jwg
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079458k
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.079490b
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.season, 2008 NFL season
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.home_team, New York Giants
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.home_team, Atlanta Falcons
m.0_3r22s, sports.sports_team_coach_tenure.coach, John Fox
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079454s
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.07947w1
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38fx
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.0793455
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.07949yy
Detroit Lions at Carolina Panthers, 2008-11-16, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yc
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794jy6
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.rushing, m.07947vm
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38hm
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.rushing, m.0793h07
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.rushing, m.0794gzw
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.07947_m
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.receiving, m.0794h3n
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.07947z7
Carolina Panthers, american_football.football_team.home_games, Atlanta Falcons at Carolina Panthers, 2008-09-28
m.04xg_yl, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2009-11-08, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.0793h2x
New Orleans Saints at Carolina Panthers, 2008-10-19, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.receiving, m.079345r
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079456x
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.0794560
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.receiving, m.0794803
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.rushing, m.09g38dw
Carolina Panthers, american_football.football_team.home_games, Philadelphia Eagles at Carolina Panthers, 2009-09-13
Chicago Bears at Carolina Panthers, 2008-09-14, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079458x
Carolina Panthers at Green Bay Packers, 2008-11-30, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949v2
Carolina Panthers at Minnesota Vikings, 2008-09-21, american_football.football_game.home_team, Minnesota Vikings
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.receiving, m.079455d
Carolina Panthers, common.topic.notable_types, Professional Sports Team
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38cc
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.passing, m.0793421
Carolina Panthers at Minnesota Vikings, 2008-09-21, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Denver Broncos at Carolina Panthers, 2008-12-14
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, common.topic.notable_for, g.125fg890p
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.receiving, m.07949rz
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.receiving, m.09g38h8

Answer: George Seifert
Dom Capers