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 has Roman Colosseum and hosted 1960 Summer Olympics? 
Knowledge Triplets: Athletics at the 1960 Summer Olympics – Men's javelin throw, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0zfyvh2
m.0qty6c6, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8z0
m.07tzft8, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.065tc9q, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics – Men's artistic team all-around, time.event.included_in_event, Gymnastics at the 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's hammer throw, olympics.olympic_event_competition.venue, Stadio Olimpico
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9v
m.0pcs11v, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics, common.topic.notable_types, Event
Rome Colloseum aeria, common.image.appears_in_topic_gallery, Initial design and construction of Colosseum
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9z
Men's Greco-Roman Wrestling, Light Heavyweight 79-87kg, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Swimming at the 1960 Summer Olympics, common.topic.notable_types, Event
m.0bntxrr, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tc8q, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcb6
1960 Summer Olympics, olympics.olympic_games.sports, Olympic weightlifting
1960 Summer Olympics, olympics.olympic_games.athletes, m.0pcr4qc
m.0bnty1g, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8n_
Gymnastics at the 1960 Summer Olympics – Men's artistic team all-around, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
m.07tzfws, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Barcelona, olympics.olympic_host_city.olympics_hosted, 1992 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbq
1960 Summer Olympics, olympics.olympic_games.sports, Artistic gymnastics
1960 Summer Olympics, olympics.olympic_games.athletes, m.011lmry4
1960 Summer Olympics, common.topic.notable_for, g.1259v0sll
Olympic trap, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics – Men's javelin throw
1960, time.event.includes_event, 1960 Winter Olympics
m.07tzf_8, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960, time.event.includes_event, 1960 Summer Olympics
m.07tzfts, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Men's Greco-Roman Wrestling, Middleweight 73-79kg, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics, common.topic.article, m.0d6h57
m.065tc92, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's hammer throw, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
m.06341sh, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tc9v, 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.0sx1r5d
Men's Greco-Roman Wrestling, Lightweight 62-67 kg, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.09rmk24
1960 Summer Olympics, olympics.olympic_games.sports, Modern pentathlon
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc92
m.065tcbv, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Track cycling
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8t2
Rome, olympics.olympic_host_city.olympics_hosted, 1960 Summer Olympics
United Kingdom, olympics.olympic_participating_country.olympics_participated_in, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbb
Individual Dressage, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
Rome Colosseum, common.image.size, m.02gsq5f
m.07tzftj, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbl
Gymnastics at the 1960 Summer Olympics – Men's horizontal bar, olympics.olympic_event_competition.event, Men's Horizontal bar
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8dm
1960 Summer Olympics, olympics.olympic_games.athletes, m.04kbzqy
1960 Summer Olympics, olympics.olympic_games.sports, Eventing
1960 Summer Olympics, time.event.locations, Rome
m.0_r1dlw, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.04dq8z0, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tcb2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Eventing, individual, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
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
Fencing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0bnty1g
Rome 1960: The Olympics That Changed the World, common.topic.article, m.047t03h
1960 Summer Olympics, olympics.olympic_games.sports, Road cycling
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8f7
Colosseum, location.location.containedby, Rome
m.065tcbz, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Swimming at the 1960 Summer Olympics, common.topic.notable_for, g.125cgyxbg
Stadio Olimpico, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1960 Summer Olympics – Men's javelin throw
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbz
Diving, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Colosseum, location.location.containedby, Italy
Rome Colloseum aeria, common.image.size, m.0k1607
Rome 1960: The Olympics That Changed the World, book.written_work.subjects, History
1960 Winter Olympics, olympics.olympic_games.participating_countries, United Kingdom
m.04dq8f7, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzfxj, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Water polo
1960 Summer Olympics, olympics.olympic_games.athletes, m.06341sh
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8v
Rome, travel.travel_destination.tourist_attractions, Colosseum
1960 Summer Olympics, common.topic.notable_types, Olympic games
1960 Summer Olympics, olympics.olympic_games.sports, Diving
Gymnastics at the 1960 Summer Olympics – Men's horizontal bar, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
m.04dq8t2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Stadio Olimpico, olympics.olympic_venue.olympic_games_used_in, 1960 Summer Olympics
m.07tzfv0, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, common.topic.article, m.0lbdm
Unified Team of Germany, olympics.olympic_participating_country.olympics_participated_in, 1960 Summer Olympics
m.07tzfsz, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Boxing
m.07tzf_j, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Diving at the 1960 Summer Olympics, time.event.included_in_event, 1960 Summer Olympics
m.065tc9l, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.04dq7zv, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's hammer throw, time.event.locations, Stadio Olimpico
m.011v160b, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Men's Greco-Roman Wrestling, Heavyweight +87, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, time.event.included_in_event, 1960
m.07tzfz8, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0sxcmr9
m.07tzg43, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Winter Olympics, olympics.olympic_games.participating_countries, Unified Team of Germany
Gymnastics at the 1960 Summer Olympics, time.event.includes_event, Gymnastics at the 1960 Summer Olympics – Men's horizontal bar
m.065tcbl, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9b
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9q
Stadio Olimpico, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1960 Summer Olympics – Men's decathlon
m.07tzg18, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.07tzfz0, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.07tzfrq, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcb2
1960 Summer Olympics, time.event.includes_event, Gymnastics at the 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9l
1960 Winter Olympics, time.event.included_in_event, 1960
1960 Summer Olympics, olympics.olympic_games.athletes, m.0qtycq2
1960 Summer Olympics, olympics.olympic_games.sports, Freestyle wrestling
Rome Colloseum aeria, common.image.appears_in_topic_gallery, Colosseum
Boxing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
m.065tc8v, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbv
m.0sx1r5d, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Diving at the 1960 Summer Olympics, common.topic.notable_for, g.125fqhznb
Football, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
m.065tcb6, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Basketball, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
m.065tc9b, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Athletics at the 1960 Summer Olympics – Men's javelin throw, time.event.locations, Stadio Olimpico
1960 Summer Olympics, olympics.olympic_games.athletes, m.0_r1dlw
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics – Men's hammer throw
m.011lmry4, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Diving at the 1960 Summer Olympics, common.topic.article, m.026qdfm
Rome 1960: The Olympics That Changed the World, common.topic.notable_for, g.1257mn2ss
1960 Summer Olympics, book.book_subject.works, Rome 1960: The Olympics That Changed the World
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics – Men's decathlon
Rome Colosseum, common.image.appears_in_topic_gallery, Colosseum
Athletics at the 1960 Summer Olympics – Men's decathlon, time.event.locations, Stadio Olimpico
Colosseum, common.topic.image, Rome Colosseum
1960 Summer Olympics, olympics.olympic_games.sports, Track and field athletics
Swimming, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Men's Greco Roman Wrestling - 52 kg, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.07tzfrg, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.0zfyvh2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1992 Summer Olympics, olympics.olympic_games.host_city, Barcelona
m.07tzfxs, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0qty6c6
Men's Rings, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.04dq8dm, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Rome, olympics.olympic_bidding_city.olympics_bid_on, m.08lq3hg
m.065tcbq, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0pcs11v
1960 Summer Olympics, olympics.olympic_games.participating_countries, Unified Team of Germany
m.07tzfzj, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc96
Rome 1960: The Olympics That Changed the World, book.written_work.author, David Maraniss
1960 Summer Olympics, olympics.olympic_games.athletes, m.0w2vkvp
Greco-Roman wrestling, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, book.book.editions, Rome 1960: The Olympics That Changed the World
Gymnastics at the 1960 Summer Olympics, common.topic.notable_for, g.125b22qy_
Stadio Olimpico, location.location.events, Athletics at the 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8z
1960 Summer Olympics, olympics.olympic_games.athletes, m.0qzczl7
1960 Summer Olympics, olympics.olympic_games.venues, Stadio Olimpico
Rome Colosseum, common.image.size, m.029mrvc
Athletics at the 1960 Summer Olympics – Men's decathlon, olympics.olympic_event_competition.olympic_games_contested, 1960 Summer Olympics
m.0j2cwr1, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
David Maraniss, book.author.works_written, Rome 1960: The Olympics That Changed the World
1960 Summer Olympics, olympics.olympic_games.athletes, m.0bntxsc
m.07tzg4m, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.0sxcmr9, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Winter Olympics, olympics.olympic_games.athletes, m.011vn01p
m.0qzczl7, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tcbg
Athletics at the 1960 Summer Olympics – Men's decathlon, olympics.olympic_event_competition.venue, Stadio Olimpico
Dressage, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
m.07tzg4c, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.0bntxrr
1960 Summer Olympics, olympics.olympic_games.sports, Basketball
1960 Summer Olympics, olympics.olympic_games.sports, Greco-Roman wrestling
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq826
m.0pcr4qc, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, common.topic.image, rome 1960.jpg
1960 Summer Olympics, time.event.instance_of_recurring_event, Summer Olympic Games
Rome 1960: The Olympics That Changed the World, common.topic.notable_types, Book
Men's Greco-Roman Wrestling, Bantamweight 52-57kg, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Rowing
m.07tzfs6, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Colosseum, common.topic.image, Rome Colloseum aeria
David Maraniss, book.author.book_editions_published, Rome 1960: The Olympics That Changed the World
m.07tzfsg, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc9g
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq8m8
m.07tzfsq, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Football
1960 Summer Olympics, olympics.olympic_games.athletes, m.011v160b
Rome 1960: The Olympics That Changed the World, book.book.genre, Non-fiction
m.04dq8m8, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.04dq8n_, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzg00, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8l
Summer Olympic Games, time.recurring_event.instances, 1960 Summer Olympics
1960 Summer Olympics, time.event.includes_event, Diving at the 1960 Summer Olympics
m.07tzg4w, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Eventing, olympics.olympic_sport.olympic_games_contested, 1960 Summer Olympics
Jumping, individual, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.08lq3hg, olympics.olympic_city_bid.bidding_city, Rome
Men's Greco-Roman Wrestling, Featherweight 57-62 kg, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Swimming
m.0qtycq2, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.host_city, Rome
m.04dq7pp, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Colosseum, location.location.containedby, Rome
1960 Summer Olympics, olympics.olympic_games.sports, Shooting sport
1960 Summer Olympics, olympics.olympic_games.sports, Fencing
m.065tc8l, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.09rmk24, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Canoe Sprint
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq7zv
1960 Summer Olympics, olympics.olympic_games.host_city, Rome
m.04dq826, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Gymnastics at the 1960 Summer Olympics, time.event.included_in_event, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.athletes, m.065tc8q
m.065tc8z, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
Rome 1960: The Olympics That Changed the World, book.written_work.subjects, Olympic Games
Swimming at the 1960 Summer Olympics, time.event.included_in_event, 1960 Summer Olympics
m.0bntxsc, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.07tzfrz, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
m.065tc9g, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.participating_countries, United Kingdom
1960 Summer Olympics, olympics.olympic_games.athletes, m.04dq7pp
m.0w2vkvp, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Show jumping
1960 Summer Olympics, olympics.olympic_games.sports, Dressage
m.04kbzqy, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, time.event.includes_event, Swimming at the 1960 Summer Olympics
Rome Colosseum, common.image.size, m.0kklp7
Swimming at the 1960 Summer Olympics, common.topic.article, m.0brdcm
Men's Greco-Roman Wrestling,  Welterweight 67-73 kg, olympics.olympic_event.olympic_games_contested, 1960 Summer Olympics
m.065tcbg, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
1960 Summer Olympics, olympics.olympic_games.sports, Hockey
Stadio Olimpico, olympics.olympic_venue.olympic_events_contested_here, Athletics at the 1960 Summer Olympics – Men's hammer throw
Rome Colosseum, common.image.size, m.02f5lxy
1960 Summer Olympics, olympics.olympic_games.athletes, m.0j2cwr1
Athletics at the 1960 Summer Olympics – Men's javelin throw, olympics.olympic_event_competition.venue, Stadio Olimpico
m.07tzfys, olympics.olympic_medal_honor.olympics, 1960 Summer Olympics
Colosseum, travel.tourist_attraction.near_travel_destination, Rome
1960 Summer Olympics, olympics.olympic_games.sports, Sailing
m.065tc9z, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics
m.065tc96, olympics.olympic_athlete_affiliation.olympics, 1960 Summer Olympics

Answer: Rome