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 1960 Olympics and was the central city of the roman empire? 
Knowledge Triplets: Stadio Olimpico, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1960 Summer Olympics – Men's decathlon
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbv
Sailing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's decathlon, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq826
Rome 1960: The Olympics That Changed the World, book.written_work.subjects, Olympic Games
1960 Summer Olympics, common.topic.article, m.0lbdm
1960 Summer Olympics, time.event.instance_of_recurring_event, Summer Olympic Games
m.07tzft8, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Sailing
Summer Olympic Games, time.recurring_event.instances, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0pcr4qc
1960 Summer Olympics, olympics.olympic_games.sports, Modern pentathlon
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8l
Men's Pommel horse, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.07tzf_8, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.07tzg4w, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
David Maraniss, book.author.book_editions_published, Rome 1960: The Olympics That Changed the World
m.065tc9g, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Winter Olympics, olympics.olympic_games.participating_countries, Unified Team of Germany
1960 Summer Olympics, olympics.olympic_games.sports, Dressage
m.06341sh, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0zfyvh2
Rome 1960: The Olympics That Changed the World, book.book.genre, Non-fiction
m.065tcbz, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tc8z, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.0sxcmr9, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Men's Vault, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.07tzfs6, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Track and field athletics, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Roman Empire, location.country.capital, Rome
Swimming, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
m.065tc8q, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0qzczl7
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8q
1960 Winter Olympics, common.topic.notable_types, Olympic games
1960 Summer Olympics, olympics.olympic_games.athletes, m.06341sh
m.065tcbg, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Swimming at the 1960 Summer Olympics, common.topic.notable_for, g.125cgyxbg
m.0pcr4qc, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, book.written_work.subjects, History
m.011v160b, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.0bntxrr, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Shooting sport, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8t2
1960 Summer Olympics, olympics.olympic_games.sports, Track cycling
m.04dq8n_, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's javelin throw, olympics.olympic_event_competition.medalists, m.07tzftj
m.065tcbv, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960s, time.event.includes_event, 1960
Athletics at the 1960 Summer Olympics – Men's javelin throw, time.event.locations, Stadio Olimpico
Basketball, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Fencing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Artistic gymnastics, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0sxcmr9
United Kingdom, olympics.olympic_participating_country.olympics_participated_in, 1960 Winter Olympics
Rome 1960: The Olympics That Changed the World, book.book.editions, Rome 1960: The Olympics That Changed the World
Athletics at the 1960 Summer Olympics – Men's hammer throw, olympics.olympic_event_competition.venue, Stadio Olimpico
m.065tc9z, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Hockey
1960 Winter Olympics, olympics.olympic_games.participating_countries, United Kingdom
m.07tzfz0, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics – Men's horizontal bar, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
m.07tzg18, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Olympic trap, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, common.topic.notable_for, g.1257mn2ss
Swimming at the 1960 Summer Olympics, common.topic.article, m.0brdcm
1960 Summer Olympics, olympics.olympic_games.athletes, m.04kbzqy
1960, time.event.included_in_event, 1960s
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9b
1960 Summer Olympics, olympics.olympic_games.venues, Stadio Olimpico
m.04dq8dm, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Rome, olympics.olympic_bidding_city.olympics_bid_on, m.08lq3hg
1960, time.event.includes_event, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's hammer throw, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
Men's Épée individual, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0bnty1g
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9v
Rome 1960: The Olympics That Changed the World, common.topic.notable_types, Book
m.0qty6c6, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Rome, olympics.olympic_host_city.olympics_hosted, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.host_city, Rome
1960 Summer Olympics, time.event.locations, Rome
m.07tzg00, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc92
Greco-Roman wrestling, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9z
1960 Summer Olympics, olympics.olympic_games.sports, Fencing
Roman Empire, location.country.capital, Rome
Diving at the 1960 Summer Olympics, common.topic.notable_for, g.125fqhznb
Gymnastics at the 1960 Summer Olympics, common.topic.article, m.0d6h57
Roman Empire, location.country.capital, Constantinople
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics – Men's decathlon
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8m8
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8z0
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9g
m.07tzfxj, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.07tzfrz, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Greco-Roman wrestling
m.065tc9q, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Show jumping
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq7pp
1960 Summer Olympics, olympics.olympic_games.athletes, m.011v160b
Rome 1960: The Olympics That Changed the World, common.topic.image, rome 1960.jpg
1960 Summer Olympics, olympics.olympic_games.sports, Water polo
m.07tzfrq, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's decathlon, time.event.locations, Stadio Olimpico
1960 Summer Olympics, olympics.olympic_games.sports, Swimming
Stadio Olimpico, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1960 Summer Olympics – Men's javelin throw
1960 Summer Olympics, time.event.included_in_event, 1960
m.07tzfws, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0_r1dlw
Show jumping, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Eventing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
United Kingdom, olympics.olympic_participating_country.olympics_participated_in, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Road cycling
m.065tc92, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.0j2cwr1, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Diving at the 1960 Summer Olympics, time.event.included_in_event, 1960 Summer Olympics
Water polo, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, time.event.includes_event, Diving at the 1960 Summer Olympics
m.065tc8v, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzg4m, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0w2vkvp
Hockey, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, book.written_work.subjects, 1960 Summer Olympics
Olympic weightlifting, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Diving
Roman Empire, location.country.capital, Ravenna
1960 Summer Olympics, common.topic.notable_for, g.1259v0sll
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9q
1960 Summer Olympics, olympics.olympic_games.athletes, m.0j2cwr1
1960 Summer Olympics, olympics.olympic_games.sports, Rowing
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8v
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcb6
m.0pcs11v, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics – Men's hammer throw
Jumping, individual, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.065tc9v, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8z
1960 Summer Olympics, common.topic.notable_types, Olympic games
m.0zfyvh2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tc8l, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's hammer throw, time.event.locations, Stadio Olimpico
m.04dq8m8, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzfys, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.0qzczl7, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Individual Dressage, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.07tzftj, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.07tzfts, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.0_r1dlw, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzfsg, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Winter Olympics, olympics.olympic_games.athletes, m.011vn01p
Football, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Unified Team of Germany, olympics.olympic_participating_country.olympics_participated_in, 1960 Winter Olympics
m.09rmk24, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics, common.topic.notable_for, g.125b22qy_
m.04dq7zv, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Diving, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.09rmk24
m.0sx1r5d, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8n_
1960 Summer Olympics, book.book_subject.works, Rome 1960: The Olympics That Changed the World
1960 Summer Olympics, olympics.olympic_games.sports, Boxing
m.04dq826, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tc9b, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, book.written_work.author, David Maraniss
m.011vn01p, olympics.olympic_athlete_affiliation.olympics, 1960 Winter Olympics
m.07tzfxs, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8dm
m.065tcbq, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tcbb, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbl
m.0bntxsc, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.0qtycq2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Swimming at the 1960 Summer Olympics, common.topic.notable_types, Event
m.07tzfz8, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Men's Rings, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics, time.event.included_in_event, 1960 Summer Olympics
m.0bnty1g, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Boxing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
m.04dq7pp, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzfzj, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics, common.topic.notable_types, Event
1960, time.event.includes_event, 1960 Winter Olympics
1960 Winter Olympics, time.event.included_in_event, 1960
1960 Summer Olympics, olympics.olympic_games.sports, Basketball
1960 Summer Olympics, olympics.olympic_games.athletes, m.011lmry4
Athletics at the 1960 Summer Olympics – Men's javelin throw, olympics.olympic_event_competition.venue, Stadio Olimpico
1960 Summer Olympics, olympics.olympic_games.sports, Eventing
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq7zv
1960 Summer Olympics, olympics.olympic_games.sports, Track and field athletics
Diving at the 1960 Summer Olympics, common.topic.article, m.026qdfm
1960 Summer Olympics, olympics.olympic_games.participating_countries, Unified Team of Germany
m.07tzg4c, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
David Maraniss, book.author.works_written, Rome 1960: The Olympics That Changed the World
Freestyle wrestling, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc96
Swimming at the 1960 Summer Olympics, time.event.included_in_event, 1960 Summer Olympics
Stadio Olimpico, olympics.olympic_venue.olympic_games_used_in, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics – Men's artistic team all-around, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9l
m.08lq3hg, olympics.olympic_city_bid.bidding_city, Rome
Road cycling, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbg
m.07tzf_j, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Stadio Olimpico, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1960 Summer Olympics – Men's hammer throw
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbq
m.07tzfsz, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.065tcb2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Football
m.04dq8f7, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, time.event.includes_event, Gymnastics at the 1960 Summer Olympics
Diving at the 1960 Summer Olympics, common.topic.notable_types, Event
m.07tzftj, olympics.olympic_medal_honor.event, Athletics at the 1960 Summer Olympics – Men's javelin throw
m.0w2vkvp, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.participating_countries, United Kingdom
m.07tzfv0, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0qtycq2
Men's Horizontal bar, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's javelin throw, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
m.065tcbl, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0pcs11v
1960 Summer Olympics, olympics.olympic_games.sports, Canoe Sprint
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbb
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbz
m.065tcb6, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Artistic gymnastics
m.07tzfsq, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Men's Parallel bars, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's decathlon, olympics.olympic_event_competition.venue, Stadio Olimpico
1960 Summer Olympics, olympics.olympic_games.sports, Shooting sport
m.04dq8t2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, common.topic.article, m.047t03h
1960 Summer Olympics, olympics.olympic_games.athletes, m.0qty6c6
Unified Team of Germany, olympics.olympic_participating_country.olympics_participated_in, 1960 Summer Olympics
Track cycling, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Roman Empire, location.location.contains, Scythopolis
Rowing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, time.event.includes_event, Swimming at the 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Freestyle wrestling
1960 Summer Olympics, olympics.olympic_games.athletes, m.0bntxrr
Dressage, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
m.011lmry4, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzg43, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Women's Vault, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.065tc9l, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.04kbzqy, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Modern pentathlon, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics – Men's javelin throw
1960 Summer Olympics, olympics.olympic_games.host_city, Rome
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8f7
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcb2
m.065tc96, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzfrg, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.04dq8z0, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Olympic weightlifting
1960 Summer Olympics, olympics.olympic_games.athletes, m.0sx1r5d
1960 Summer Olympics, olympics.olympic_games.athletes, m.0bntxsc

Answer: Rome