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: Team mascot named Sir Purr is part of the team coached by whom? 
Knowledge Triplets: Carolina Panthers, sports.sports_team.venue, m.0pbzfw4
m.075fhqm, sports.sports_team_season_record.team, Carolina Panthers
m.0gg1r6y, tv.tv_guest_role.actor, Carolina Panthers
Sir Purr, common.topic.article, m.03lr5y
Mascot, freebase.type_profile.equivalent_topic, Mascot
Charlotte, sports.sports_team_location.teams, Carolina Panthers
Team Mascot, rdf-schema#range, Mascot
Carolina Panthers, sports.sports_team.season_record, m.075fhqc
Carolina Panthers, award.award_nominee.award_nominations, m.0z6b598
Carolina Panthers at Atlanta Falcons, 2008-11-23, american_football.football_game.away_team, Carolina Panthers
NFC South, sports.sports_league.teams, m.0crtfg9
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at San Diego Chargers, 2008-09-07
Carolina Panthers, american_football.football_team.current_head_coach, Ron Rivera
Carolina Panthers, sports.sports_team.colors, White
Carolina Panthers, sports.sports_team.colors, Silver
Mascot, type.type.expected_by, Team Mascot
Philadelphia Eagles at Carolina Panthers, 2009-09-13, american_football.football_game.home_team, Carolina Panthers
m.0gfxb0c, tv.tv_guest_role.actor, Carolina Panthers
Carolina Panthers, common.topic.image, Carolina Panthers Helmet
m.0crt99h, sports.sports_league_participation.team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2008-12-21
Bank of America Stadium, sports.sports_facility.home_venue_for, m.0pbzg04
Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12, american_football.football_game.away_team, Carolina Panthers
m.0crt99h, sports.sports_league_participation.league, National Football Conference
Carolina Panthers, sports.sports_team.season_record, m.075fhm9
m.05bj8xw, sports.sports_league_draft_pick.team, Carolina Panthers
Chicago Bears at Carolina Panthers, 2008-09-14, american_football.football_game.home_team, Carolina Panthers
Mascot, freebase.type_profile.kind, Title
Joyce Farms, business.business_operation.major_customer, Carolina Panthers
Carolina Panthers, sports.sports_team.season_record, m.075fhnw
m.07ndw9j, base.ontologies.ontology_instance_mapping.freebase_topic, Carolina Panthers
Carolina Panthers at Atlanta Falcons, 2009-09-20, american_football.football_game.away_team, Carolina Panthers
Sports, type.domain.types, Mascot
New Orleans Saints at Carolina Panthers, 2008-10-19, american_football.football_game.home_team, Carolina Panthers
Professional Sports Team, type.type.domain, Sports
Carolina Panthers, business.customer.supplier, Joyce Farms
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18
m.075fhmt, sports.sports_team_season_record.team, Carolina Panthers
Carolina Panthers, tv.tv_actor.guest_roles, m.0gfxfdk
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Minnesota Vikings, 2008-09-21
Carolina Panthers at New Orleans Saints, 2009-11-08, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, sports.sports_team.league, m.0crt99h
Jerry Richardson, sports.sports_team_owner.teams_owned, Carolina Panthers
m.0422g9r, common.webpage.topic, Carolina Panthers
Carolina Panthers at New Orleans Saints, 2008-12-28, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, award.award_winner.awards_won, m.0z6b492
Washington Redskins at Carolina Panthers, 2009-10-11, american_football.football_game.home_team, Carolina Panthers
Mascot, type.type.domain, Sports
Arizona Cardinals at Carolina Panthers, 2008-10-26, american_football.football_game.home_team, Carolina Panthers
Sir-Purr.jpg, common.image.appears_in_topic_gallery, Sir Purr
Mascot, freebase.type_profile.published, Published
m.0pbzg04, sports.team_venue_relationship.team, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Chicago Bears at Carolina Panthers, 2008-09-14
Carolina Panthers, american_football.football_team.home_games, Arizona Cardinals at Carolina Panthers, 2008-10-26
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv74x
m.075fhn3, sports.sports_team_season_record.team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Jets, 2009-11-29
Carolina Panthers at Arizona Cardinals, 2009-11-01, american_football.football_game.away_team, Carolina Panthers
Detroit Lions at Carolina Panthers, 2008-11-16, 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, tv.tv_actor.guest_roles, m.0gfw_wm
Bank of America Stadium, business.customer.supplier, Joyce Farms
Arizona Cardinals at Carolina Panthers, 2009-01-10, american_football.football_game.home_team, Carolina Panthers
m.05bv59w, sports.sports_league_draft_pick.team, Carolina Panthers
m.05bj8x3, sports.sports_league_draft_pick.team, Carolina Panthers
Carolina Panthers, sports.sports_team.season_record, m.075fhpm
Denver Broncos at Carolina Panthers, 2008-12-14, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, sports.sports_team.season_record, m.075fhpw
m.0pbzg04, sports.team_venue_relationship.venue, Bank of America Stadium
Carolina Panthers, american_football.football_team.home_games, Miami Dolphins at Carolina Panthers, 2009-11-19
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2009-09-20
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.0j81th4
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2009-12-27
m.05cdl6p, sports.sports_league_draft_pick.team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Dallas Cowboys, 2009-09-28
m.075fhnw, sports.sports_team_season_record.team, Carolina Panthers
m.0gfy1hp, tv.tv_guest_role.actor, Carolina Panthers
m.075fhmk, sports.sports_team_season_record.team, Carolina Panthers
Carolina Panthers, american_football.football_team.conference, National Football Conference
Carolina Panthers, sports.sports_team.colors, Blue
m.0gfysdf, tv.tv_guest_role.actor, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Minnesota Vikings at Carolina Panthers, 2009-12-20
Carolina Panthers, american_football.football_team.division, NFC South
Carolina Panthers, sports.sports_team.team_mascot, Sir Purr
m.04xg_yc, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New England Patriots, 2009-12-13
Carolina Panthers, base.ontologies.ontology_instance.equivalent_instances, m.07ndw9j
2004 NFC Championship Game, sports.sports_championship_event.champion, Carolina Panthers
Carolina Panthers, common.topic.notable_for, g.1259dwnz3
Carolina Panthers, sports.sports_team.arena_stadium, Bank of America Stadium
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Green Bay Packers, 2008-11-30
Carolina Panthers, american_football.football_team.home_games, Denver Broncos at Carolina Panthers, 2008-12-14
Carolina Panthers, sports.sports_team.season_record, m.075fhn3
m.075fhm9, sports.sports_team_season_record.team, Carolina Panthers
m.075fhpc, sports.sports_team_season_record.team, Carolina Panthers
National Football Conference, sports.sports_league.sport, American football
m.05bv5vc, sports.sports_league_draft_pick.team, Carolina Panthers
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bj8xw
Sir Purr, common.topic.image, Sir-Purr.jpg
Carolina Panthers, american_football.football_team.home_games, Philadelphia Eagles at Carolina Panthers, 2009-09-13
Carolina Panthers, american_football.football_team.home_games, Kansas City Chiefs at Carolina Panthers, 2008-10-05
Carolina Panthers at Minnesota Vikings, 2008-09-21, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, sports.sports_team.league, m.0crt4n3
Bank of America Stadium, location.location.containedby, Charlotte
Carolina Panthers, sports.sports_team.venue, m.0pbzg04
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bj8x3
Professional Sports Team, freebase.type_hints.included_types, Topic
Carolina Panthers, sports.sports_team.season_record, m.075fhpc
Sir Purr, sports.mascot.team, Carolina Panthers
Carolina Panthers, sports.sports_team.colors, Black
Miami Dolphins at Carolina Panthers, 2009-11-19, american_football.football_game.home_team, Carolina Panthers
m.0gfw_wm, tv.tv_guest_role.actor, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12
Carolina Panthers, american_football.football_team.home_games, Arizona Cardinals at Carolina Panthers, 2009-01-10
Mascot, type.type.properties, Team
Carolina Panthers at San Diego Chargers, 2008-09-07, american_football.football_game.away_team, Carolina Panthers
National Football Conference, american_football.football_conference.teams, Carolina Panthers
m.075fhp3, sports.sports_team_season_record.team, Carolina Panthers
m.0j81th4, american_football.football_historical_coach_position.team, Carolina Panthers
m.075fhnm, sports.sports_team_season_record.team, Carolina Panthers
Carolina Panthers, american_football.football_coach.current_team_head_coached, Ron Rivera
Carolina Panthers, common.topic.webpage, m.0422g9r
Carolina Panthers, tv.tv_actor.guest_roles, m.0gfxb0c
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv86v
m.075fhpw, sports.sports_team_season_record.team, Carolina Panthers
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv59w
Carolina Panthers, sports.sports_team.season_record, m.075fhp3
Carolina Panthers, sports.sports_team.season_record, m.075fhmk
Carolina Panthers, american_football.football_team.home_games, New Orleans Saints at Carolina Panthers, 2008-10-19
National Football Conference, american_football.football_conference.divisions, NFC South
Carolina Panthers, sports.professional_sports_team.owner_s, Jerry Richardson
Professional Sports Team, freebase.type_profile.strict_included_types, Topic
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2008-11-23
Atlanta Falcons at Carolina Panthers, 2009-11-15, american_football.football_game.home_team, Carolina Panthers
Team Mascot, owl#inverseOf, Team
m.0_3r22s, sports.sports_team_coach_tenure.team, Carolina Panthers
Team Mascot, type.property.expected_type, Mascot
m.075fhqc, sports.sports_team_season_record.team, Carolina Panthers
Team, rdf-schema#domain, Mascot
Mascot, common.topic.article, m.02ht4bx
Carolina Panthers, sports.sports_team.season_record, m.075fhnm
Carolina Panthers, tv.tv_actor.guest_roles, m.0gfzrzz
Carolina Panthers, american_football.football_team.home_games, Buffalo Bills at Carolina Panthers, 2009-10-25
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Oakland Raiders, 2008-11-09
Sir Purr, common.topic.notable_types, Mascot
Carolina Panthers, american_football.football_team.home_games, Tampa Bay Buccaneers at Carolina Panthers, 2009-12-06
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yc
Carolina Panthers at New England Patriots, 2009-12-13, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers at New York Jets, 2009-11-29, american_football.football_game.away_team, Carolina Panthers
Ron Rivera, american_football.football_coach.current_team_head_coached, Carolina Panthers
Tampa Bay Buccaneers at Carolina Panthers, 2008-12-08, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, tv.tv_actor.guest_roles, m.0gfysdf
Sir Purr, common.topic.notable_for, g.12567d_2n
m.010hbtxb, sports.sports_league_draft_pick.team, Carolina Panthers
Mascot, freebase.documented_object.documentation, m.02ht4bx
Carolina Panthers, american_football.football_team.home_games, Washington Redskins at Carolina Panthers, 2009-10-11
NFC South, american_football.football_division.conference, National Football Conference
m.05bv86v, sports.sports_league_draft_pick.team, Carolina Panthers
m.075fhnc, sports.sports_team_season_record.team, Carolina Panthers
Carolina Panthers at New York Giants, 2008-12-21, american_football.football_game.away_team, Carolina Panthers
m.05bv74x, sports.sports_league_draft_pick.team, Carolina Panthers
Mascot, freebase.type_hints.included_types, Topic
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2008-12-28
Sports, type.domain.types, Professional Sports Team
Mascot, freebase.type_profile.strict_included_types, Topic
Bank of America Stadium, sports.sports_facility.teams, Carolina Panthers
Sir Purr, sports.sports_team.team_mascot, Carolina Panthers
Carolina Panthers at Green Bay Packers, 2008-11-30, american_football.football_game.away_team, Carolina Panthers
Team, type.property.master_property, Team Mascot
Carolina Panthers, tv.tv_actor.guest_roles, m.0gfy1hp
Carolina Panthers, american_football.football_team.home_games, Atlanta Falcons at Carolina Panthers, 2008-09-28
Carolina Panthers, tv.tv_actor.guest_roles, m.0ggrntb
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv5vc
Minnesota Vikings at Carolina Panthers, 2009-12-20, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Arizona Cardinals, 2009-11-01
Carolina Panthers, sports.sports_team.season_record, m.075fhqm
Mascot, type.type.expected_by, sports_team_mascot
Carolina Panthers, sports.sports_team.season_record, m.075fhnc
m.0pbzfw4, sports.team_venue_relationship.team, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, New Orleans Saints at Carolina Panthers, 2010-01-03
Carolina Panthers Helmet, common.image.appears_in_topic_gallery, Carolina Panthers
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2009-11-08
Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18, american_football.football_game.away_team, Carolina Panthers
New Orleans Saints at Carolina Panthers, 2010-01-03, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, sports.sports_team.location, Charlotte
m.0gfxfdk, tv.tv_guest_role.actor, Carolina Panthers
m.0z6b492, award.award_honor.award_winner, Carolina Panthers
Carolina Panthers, sports.sports_team.championships, 2004 NFC Championship Game
Joyce Farms, business.business_operation.major_customer, Bank of America Stadium
Charlotte, location.hud_county_place.place, Charlotte
m.0crt4n3, sports.sports_league_participation.team, Carolina Panthers
NFC South, american_football.football_division.teams, Carolina Panthers
Team, type.property.schema, Mascot
Carolina Panthers at Oakland Raiders, 2008-11-09, american_football.football_game.away_team, Carolina Panthers
m.0crtfg9, sports.sports_league_participation.team, Carolina Panthers
Carolina Panthers, sports.sports_team.season_record, m.075fhmt
Carolina Panthers, sports.sports_team.coaches, m.0_3r22s
Sir-Purr.jpg, common.image.size, m.0kksz7
NFC South, sports.sports_league.sport, American football
Buffalo Bills at Carolina Panthers, 2009-10-25, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Tampa Bay Buccaneers at Carolina Panthers, 2008-12-08
Carolina Panthers, sports.professional_sports_team.draft_picks, m.010hbtxb
Carolina Panthers, sports.sports_team.fight_song, Sweet Caroline
m.04xg_yl, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers, sports.sports_team.sport, American football
Carolina Panthers, sports.sports_team.league, m.0crtfg9
Carolina Panthers at Dallas Cowboys, 2009-09-28, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, common.topic.article, m.01y3n
National Football Conference, sports.sports_league.teams, m.0crt99h
m.075fhpm, sports.sports_team_season_record.team, Carolina Panthers
Carolina Panthers, common.topic.notable_types, Professional Sports Team
Atlanta Falcons at Carolina Panthers, 2008-09-28, american_football.football_game.home_team, Carolina Panthers
Carolina Panthers, tv.tv_actor.guest_roles, m.0gg1r6y
Sweet Caroline, sports.fight_song.sports_team, Carolina Panthers
m.0z6b598, award.award_nomination.award_nominee, Carolina Panthers
Carolina Panthers at New York Giants, 2009-12-27, american_football.football_game.away_team, Carolina Panthers
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05cdl6p
Topic, freebase.type_profile.published, Published
Kansas City Chiefs at Carolina Panthers, 2008-10-05, american_football.football_game.home_team, Carolina Panthers
Team Mascot, type.property.reverse_property, Team
m.0ggrntb, tv.tv_guest_role.actor, Carolina Panthers
m.075fhq3, sports.sports_team_season_record.team, Carolina Panthers
m.0gfzrzz, tv.tv_guest_role.actor, Carolina Panthers
Carolina Panthers, american_football.football_team.home_games, Detroit Lions at Carolina Panthers, 2008-11-16
Carolina Panthers, sports.sports_team.season_record, m.075fhq3
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yl
Tampa Bay Buccaneers at Carolina Panthers, 2009-12-06, american_football.football_game.home_team, Carolina Panthers
m.0crtfg9, sports.sports_league_participation.league, NFC South

Answer: Ron Rivera