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 city hosted the 1980 Summer Olympic and is where Roman Abramovich live? 
Knowledge Triplets: Athletics at the 1980 Summer Olympics, time.event.locations, Luzhniki Stadium
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2rr
m.04dq8fn, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Athletics at the 1980 Summer Olympics, common.topic.notable_types, Event
1980 Summer Olympics, olympics.olympic_games.athletes, m.0_ly7l1
Roman Abramovich, common.topic.webpage, m.0b6rsd2
1980 Summer Olympics, common.topic.notable_for, g.125fk0g95
1980 Summer Olympics, olympics.olympic_games.sports, Shooting sport
m.09cxdw6, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.0bntxw7
Roman Abramovich, people.person.nationality, Russia
Roman Abramovich, people.person.education, m.05ntsxw
m.09kkfyl, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2sh
1980 Summer Olympics, common.topic.article, m.0l6vx
Olympic Stadium, olympics.olympic_venue.olympic_games_used_in, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Football
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkfz2
1980 Summer Olympics, time.event.includes_event, Athletics at the 1980 Summer Olympics
Roman Abramovich, people.person.profession, Politician
1980 Summer Olympics, olympics.olympic_games.sports, Freestyle wrestling
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2t7
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkg0v
1980 Summer Olympics, olympics.olympic_games.sports, Handball
Luzhniki Stadium, location.location.events, Athletics at the 1980 Summer Olympics – Men's 110 metres hurdles
1980 Summer Olympics, time.event.includes_event, Handball at the 1980 Summer Olympics
m.04dq7yl, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq7d4
Russia, location.country.capital, Moscow
Football at the 1980 Summer Olympics, olympics.olympic_event_competition.event, Men's football
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkfyv
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq8xh
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2tm
1980 Summer Olympics, time.event.includes_event, 1980 Summer Olympics closing ceremony
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2th
m.09kkg0b, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Roman Abramovich, people.person.places_lived, m.04j7qx7
m.09kkf_2, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Artistic gymnastics
Roman Abramovich, people.person.places_lived, m.04j7qx7
London, olympics.olympic_host_city.olympics_hosted, The London 2012 Summer Olympics
m.0_d2905, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.065x2sc, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
The London 2012 Summer Olympics, olympics.olympic_games.host_city, London
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2tw
m.0q2v3sj, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics opening ceremony, time.event.included_in_event, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkfzv
Roman Abramovich, organization.organization_founder.organizations_founded, Millhouse Capital
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2s3
Roman Abramovich, common.topic.image, Roman Abramovich
Luzhniki Stadium, olympics.olympic_venue.olympic_events_contested_here, Volleyball at the 1980 Summer Olympics – Women's tournament
m.0bntxw7, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Show jumping
1980 Summer Olympics, olympics.olympic_games.venues, Olympic Stadium
m.065x2rm, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Canoe Sprint
1980 Summer Olympics, olympics.olympic_games.athletes, m.0774lg6
1980 Summer Olympics, olympics.olympic_games.sports, Track cycling
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2rw
1980 Summer Olympics, olympics.olympic_games.sports, Dressage
1980 Summer Olympics, olympics.olympic_games.athletes, m.07nv3s3
1980 Summer Olympics, olympics.olympic_games.sports, Road cycling
1980 Summer Olympics opening ceremony, common.topic.notable_types, Event
m.09kkfyv, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, time.event.locations, Moscow
1980 Summer Olympics, olympics.olympic_games.athletes, m.0kdbblh
1980 Summer Olympics, olympics.olympic_games.athletes, m.0w36txt
Roman Abramovich, people.person.places_lived, m.05ntswm
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2t3
m.065x2tr, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.0w36txt, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.0kdbblh, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq7sg
Roman Abramovich, people.person.place_of_birth, Saratov
m.065x2rc, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.0q2v3sj
m.09kkfzv, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkg0b
m.04dq7sg, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Roman Abramovich, people.person.religion, Judaism
Luzhniki Stadium, olympics.olympic_venue.olympic_games_used_in, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.0q2q7r1
Athletics at the 1980 Summer Olympics – Women's pentathlon, olympics.olympic_event_competition.olympic_games_contested, 1980 Summer Olympics
Misha, olympics.olympic_mascot.olympic_games, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2sr
Luzhniki Palace of Sports, location.location.events, Volleyball at the 1980 Summer Olympics
Football at the 1980 Summer Olympics, olympics.olympic_event_competition.medalists, m.09kkfs1
1980 Summer Olympics, olympics.olympic_games.athletes, m.0bqxvx1
1980 Summer Olympics, olympics.olympic_games.athletes, m.09rkq3t
Roman Abramovich, people.person.education, m.05ntt1w
Luzhniki Stadium, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1980 Summer Olympics – Men's 100 metres
London, olympics.olympic_host_city.olympics_hosted, 1948 Summer Olympics
1980 Summer Olympics closing ceremony, common.topic.article, m.0cnyszp
1980 Summer Olympics, olympics.olympic_games.athletes, m.0wgbvhx
1980 Summer Olympics, olympics.olympic_games.sports, Fencing
m.065x2rh, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.065x2s3, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.04dq8sf, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Football at the 1980 Summer Olympics, common.topic.notable_for, g.1255l0jxj
m.09kkfzb, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.065x2r3, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.04dq83q, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Athletics at the 1980 Summer Olympics – Women's 100 metres, olympics.olympic_event_competition.venue, Luzhniki Stadium
1980 Summer Olympics, olympics.olympic_games.sports, Archery
Roman Abramovich, people.person.spouse_s, m.02k6zd9
Luzhniki Stadium, location.location.events, Athletics at the 1980 Summer Olympics
Luzhniki Small Sports Arena, location.location.events, Volleyball at the 1980 Summer Olympics
m.09kkg1l, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Volleyball
m.0wgbvhx, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, time.event.includes_event, Diving at the 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkf_l
Luzhniki Stadium, location.location.events, Athletics at the 1980 Summer Olympics – Women's 100 metres
Olympic Stadium, location.location.events, Swimming at the 1980 Summer Olympics – Men's 4 × 100 metre medley relay
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2q_
1980 Summer Olympics, olympics.olympic_games.sports, Olympic weightlifting
1980 Summer Olympics, time.event.instance_of_recurring_event, Summer Olympic Games
1980 Summer Olympics, olympics.olympic_games.venues, Luzhniki Stadium
1980 Summer Olympics, olympics.olympic_games.sports, Water polo
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2rm
Roman Abramovich, people.person.nationality, Russia
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2tc
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkg1b
m.09rkq3t, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.04dq7vv, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.04j7qx7, people.place_lived.location, Moscow
Luzhniki Stadium, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1980 Summer Olympics – Women's 100 metres
Roman Abramovich, common.topic.article, m.01zl7c
Volleyball at the 1980 Summer Olympics, time.event.locations, Luzhniki Small Sports Arena
1980 Summer Olympics closing ceremony, common.topic.notable_for, g.1258yhg95
1980 Summer Olympics, olympics.olympic_games.athletes, m.0w3ccm3
Moscow, olympics.olympic_host_city.olympics_hosted, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq7vv
m.065x2tc, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq8vs
Volleyball at the 1980 Summer Olympics, time.event.locations, Luzhniki Palace of Sports
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2r_
Roman Abramovich, people.person.children, Ilya Abramovich
1980 Summer Olympics, olympics.olympic_games.sports, Basketball
1980 Summer Olympics, olympics.olympic_host_city.olympics_hosted, Moscow
1980 Summer Olympics, olympics.olympic_games.athletes, m.0qzf3h5
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkf_2
1980 Summer Olympics, olympics.olympic_games.athletes, m.0m_45_4
m.09kkg0v, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.09kkg0l, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, common.topic.notable_types, Olympic games
1980 Summer Olympics, olympics.olympic_games.venues, Olimpiyskiy National Sports Complex
1980 Summer Olympics closing ceremony, common.topic.notable_types, Event
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq8xq
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2sm
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2r3
Athletics at the 1980 Summer Olympics, common.topic.notable_for, g.125f586wr
Roman Abramovich, people.person.education, m.05ntsz0
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2sc
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkg12
m.065x2rr, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq8cl
m.065x2t3, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Sailing
1980 Summer Olympics, olympics.olympic_games.athletes, m.0_d2905
m.09kkg12, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Modern pentathlon
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2rc
m.065x2rw, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkg0l
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkg1l
1980 Summer Olympics, olympics.olympic_games.athletes, m.07nv5yy
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2r7
m.04dq8vs, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.03lfp46, common.webpage.topic, Roman Abramovich
Roman Abramovich, common.topic.webpage, m.03lfp46
m.05srxw1, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.04j7qx7, people.place_lived.person, Roman Abramovich
1980 Summer Olympics, time.event.includes_event, 1980 Summer Olympics opening ceremony
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkg02
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq8jc
Roman Abramovich, people.person.religion, Russian Orthodox Church
Athletics at the 1980 Summer Olympics – Men's 110 metres hurdles, olympics.olympic_event_competition.venue, Luzhniki Stadium
m.0zn77t2, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Football, olympics.olympic_sport.olympic_games_contested, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.participating_countries, United Kingdom
Athletics at the 1980 Summer Olympics – Men's 110 metres hurdles, time.event.locations, Luzhniki Stadium
1980 Summer Olympics, time.event.includes_event, Boxing at the 1980 Summer Olympics
m.04dq8xh, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2tr
m.065x2tm, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Football at the 1980 Summer Olympics, olympics.olympic_event_competition.olympic_games_contested, 1980 Summer Olympics
Luzhniki Stadium, olympics.olympic_venue.olympic_events_contested_here, Volleyball at the 1980 Summer Olympics – Men's tournament
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkf_v
1980 Summer Olympics, olympics.olympic_games.athletes, m.0rp0qkt
m.09kkfzl, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
United Kingdom, olympics.olympic_participating_country.olympics_participated_in, 1980 Summer Olympics
m.065x2sw, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.07nv3s3, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.09kkfs1, olympics.olympic_medal_honor.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Diving
m.04dq8cl, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Roman Abramovich, people.person.children, Arkadiy Abramovich
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2s7
Roman Abramovich, people.person.parents, Arkadiy Abramovich
1980 Summer Olympics, olympics.olympic_games.sports, Rowing
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkfzb
m.09kkg02, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics closing ceremony, time.event.included_in_event, 1980 Summer Olympics
m.05ntswm, people.place_lived.person, Roman Abramovich
Athletics at the 1980 Summer Olympics, common.topic.article, m.02m752
Greco-Roman wrestling, olympics.olympic_sport.olympic_games_contested, 1980 Summer Olympics
m.0774lg6, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkfzl
Roman Abramovich, people.person.children, Arina Abramovich
1980 Summer Olympics, olympics.olympic_games.sports, Hockey
1980 Summer Olympics, time.event.includes_event, Football at the 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.host_city, Moscow
1980 Summer Olympics, olympics.olympic_games.athletes, m.05srxw1
m.0qzf3h5, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.065x2t7, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Greco-Roman wrestling
Roman Abramovich, people.person.profession, Investor
Luzhniki Stadium, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1980 Summer Olympics – Men's 110 metres hurdles
Football at the 1980 Summer Olympics, time.event.included_in_event, 1980 Summer Olympics
m.04zg4q6, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Eventing
m.04dq8xq, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq83q
Roman Abramovich, people.person.education, m.05ntsym
m.065x2th, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkfyl
1980 Summer Olympics, time.event.includes_event, Volleyball at the 1980 Summer Olympics
Roman Abramovich, people.person.children, Anna Abramovich
Swimming at the 1980 Summer Olympics – Men's 4 × 100 metre medley relay, time.event.locations, Olympic Stadium
Athletics at the 1980 Summer Olympics, time.event.included_in_event, 1980 Summer Olympics
Olimpiyskiy National Sports Complex, olympics.olympic_venue.olympic_games_used_in, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Track and field athletics
m.04dq8jc, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Summer Olympic Games, time.recurring_event.instances, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.sports, Swimming
m.0q2q7r1, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
m.09kkfz2, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Roman Abramovich, people.person.education, m.05ntt26
m.065x2tw, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.mascot, Misha
1980 Summer Olympics, olympics.olympic_games.athletes, m.04zg4q6
1980 Summer Olympics, olympics.olympic_games.athletes, m.0zn77t2
Roman Abramovich, common.topic.image, Abramovich Chukotka
m.07nv5yy, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Athletics at the 1980 Summer Olympics – Women's 100 metres, time.event.locations, Luzhniki Stadium
Volleyball at the 1980 Summer Olympics, common.topic.article, m.055kwp
Roman Abramovich, people.person.parents, Irina Vasilevna Abramovich
Athletics at the 1980 Summer Olympics – Men's 100 metres, olympics.olympic_event_competition.venue, Luzhniki Stadium
1980 Summer Olympics, olympics.olympic_games.athletes, m.0q2r_d6
m.04dq7d4, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2rh
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2s_
m.065x2s7, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
Roman Abramovich, common.image.appears_in_topic_gallery, Roman Abramovich
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq8sf
Roman Abramovich, people.person.ethnicity, White people
1980 Summer Olympics, olympics.olympic_games.athletes, m.0_w60zd
1980 Summer Olympics opening ceremony, common.topic.notable_for, g.125fbxy24
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq8fn
m.04h2_t9, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.09cxdw6
m.065x2r7, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.0115r_0s
m.09kkg1b, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.065x2sw
1980 Summer Olympics, olympics.olympic_games.athletes, m.09kkf_b
Olympic Stadium, olympics.olympic_venue.olympic_events_contested_here, Swimming at the 1980 Summer Olympics – Men's 4 × 100 metre medley relay
1980 Summer Olympics, olympics.olympic_games.sports, Judo
1980 Summer Olympics, olympics.olympic_games.athletes, m.04dq7yl
m.065x2sh, olympics.olympic_athlete_affiliation.olympics, 1980 Summer Olympics
1980 Summer Olympics, olympics.olympic_games.athletes, m.04h2_t9
1980 Summer Olympics opening ceremony, common.topic.article, m.0cp0f61
Roman Abramovich, people.person.children, Sofia Abramovich
1980 Summer Olympics, olympics.olympic_games.sports, Boxing
Football at the 1980 Summer Olympics, common.topic.article, m.053tsx

Answer: Moscow