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: Which instrument played by Robin Gibb was invented by Bartolomeo Cristofori? 
Knowledge Triplets: m.01389cly, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.featured_artist.recordings, Islands in the Stream
Bartolomeo Cristofori, common.topic.article, m.01c_8x
Robin Gibb, music.group_member.membership, m.0kp0dyw
Robin Gibb, music.artist.label, Festival Records
m.0kp0dyw, music.group_membership.member, Robin Gibb
Robin Gibb, film.music_contributor.film, Tony Manero
Robin Gibb, people.person.profession, Composer
Robin Gibb, music.producer.releases_produced, High Civilization
Robin Gibb, common.topic.article, m.0kmw9b_
Charade, music.composition.composer, Robin Gibb
Robin Gibb, music.artist.album, g.121y9vkt
Sing Slowly Sisters, music.composition.lyricist, Robin Gibb
Islands in the Stream, music.recording.featured_artists, Robin Gibb
Robin Gibb, music.artist.label, Spin Records
Robin Gibb, music.group_member.membership, m.0w8g3sr
Robin-John Gibb, people.person.profession, Film Producer
Alan Freeman Days, music.composition.lyricist, Robin Gibb
Robin Gibb, freebase.valuenotation.is_reviewed, Children
Robin Gibb, music.artist.home_page, http://www.robingibb.com/
Sky West And Crooked, music.composition.composer, Robin Gibb
Love Me, music.composition.composer, Robin Gibb
Robin Gibb, music.artist.genre, Rock music
Robin Gibb, music.artist.album, 50 St. Catherine's Drive
Robin Gibb, music.lyricist.lyrics_written, We Lost the Road
Robin Gibb, music.artist.album, Robin Gibb
Robin Gibb, people.person.profession, Musician
m.0rqxn5l, music.track_contribution.contributor, Robin Gibb
Robin Gibb, people.person.profession, Record producer
Angela, music.composition.lyricist, Robin Gibb
August October, music.composition.composer, Robin Gibb
Please Read Me, music.composition.composer, Robin Gibb
Great Caesar's Ghost, music.recording.artist, Robin Gibb
Smoke and Mirrors, music.recording.producer, Robin Gibb
Come On Over, music.composition.lyricist, Robin Gibb
Barry Gibb, music.group_member.instruments_played, Guitar
Robin Gibb, music.featured_artist.recordings, All My Friends Are Here
Bartolomeo Cristofori di Francesco, common.image.appears_in_topic_gallery, Bartolomeo Cristofori
Robin-John Gibb, people.person.parents, Dwina Murphy-Gibb
Robin Gibb, people.person.sibling_s, m.0j8px2t
Ellan Vannin, music.album.artist, Robin Gibb
EMI America Records, music.record_label.artist, Robin Gibb
Robin Gibb, music.artist.genre, Psychedelic pop
Mother of Love, music.composition.composer, Robin Gibb
All My Friends Are Here, music.recording.featured_artists, Robin Gibb
BartolomeoCristofori, common.image.size, m.02dm4c5
m.0bk1l6j, common.resource.annotations, http://www.discogs.com/artist/Robin+Gibb
Robin-John Gibb, people.person.parents, Robin Gibb
Robin Gibb, film.actor.film, m.0gxgcrl
Robin Gibb, common.topic.notable_for, g.1n36d_pgp
m.0gxgcrl, film.performance.actor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, One Million Years
m.0qff0sy, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.artist.genre, Soft rock
m.01388_b1, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Sincere Relation
Don't Cry Alone, music.recording.featured_artists, Robin Gibb
Robin Gibb, music.artist.album, Magnet
Bartolomeo Cristofori, common.topic.image, BartolomeoCristofori
Robin Gibb with the Frankfurt Neue Philharmonic Orchestra: Live, media_common.netflix_title.netflix_genres, Pop music
Robin Gibb, music.artist.label, Leedon Records
Robin Gibb, music.artist.album, Magnetic Tour
Secret Agent, music.album.artist, Robin Gibb
Robin-John Gibb, people.person.nationality, United States of America
Robin Gibb, music.artist.track_contributions, m.0q824c1
Robin Gibb, tv.tv_actor.guest_roles, m.0g0bghw
Robin Gibb, music.producer.releases_produced, One
m.0138cs_4, music.track_contribution.contributor, Robin Gibb
m.0rvtrj_, music.track_contribution.contributor, Robin Gibb
m.013885yn, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, World
Robin Gibb, music.lyricist.lyrics_written, Mother of Love
Sincere Relation, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.album, The Titanic Requiem
Juliet (Tendence Soft edit), music.recording.artist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0rqp656
Stayin' Alive, music.composition.lyricist, Robin Gibb
m.0138988c, music.track_contribution.contributor, Robin Gibb
Woman in Love, music.recording.artist, Robin Gibb
I've Gotta Get a Message to You, music.composition.composer, Robin Gibb
I've Gotta Get a Message to You, music.recording.artist, Robin Gibb
Trash, music.recording.artist, Robin Gibb
Robin Gibb, music.artist.album, Walls Have Eyes
Sesame Street Fever, music.recording.artist, Robin Gibb
Robin Gibb, music.album.artist, Robin Gibb
Robin Gibb, music.artist.label, Polydor Records
Robin Gibb, music.group_member.instruments_played, Piano
Robin Gibb, music.producer.tracks_produced, Closer Than Close
I've Gotta Get a Message to You, music.recording.featured_artists, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0qff0sy
Robin Gibb, people.person.gender, Male
Robin Gibb, people.person.parents, Barbara Gibb
m.0rqmhsz, music.track_contribution.contributor, Robin Gibb
m.0q6t2nc, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.01389cly
I Don't Know Why I Bother With Myself, music.composition.composer, Robin Gibb
Instrument maker, people.profession.people_with_this_profession, Bartolomeo Cristofori
Robin Gibb, music.artist.album, g.121p6rl9
Robin Gibb, award.award_winner.awards_won, m.0jzmcs6
m.01388wds, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.01389x0w
m.0rts8fx, music.track_contribution.contributor, Robin Gibb
Rings Around the Moon, music.composition.composer, Robin Gibb
m.0gxhk6h, film.performance.actor, Robin Gibb
Robin Gibb, freebase.valuenotation.is_reviewed, Parents
m.0q9743v, music.track_contribution.contributor, Robin Gibb
Saved By The Bell, music.recording.artist, Robin Gibb
Irresistible Force, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.origin, Manchester
Lord Bless All, music.composition.composer, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Horizontal
Magnet, music.album.artist, Robin Gibb
Lord Bless All, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0110195t
Robin Gibb, film.music_contributor.film, Staying Alive
RSO Records, music.record_label.artist, Robin Gibb
m.01388_p3, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, I Close My Eyes
m.0gxjv_w, film.performance.actor, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0138d43p
Robin Gibb, music.artist.track_contributions, m.01388wds
m.0x0zf4l, music.group_membership.member, Robin Gibb
Leedon Records, music.record_label.artist, Robin Gibb
Robin Gibb, music.group_member.instruments_played, Violin
Robin Gibb, music.lyricist.lyrics_written, Craise Finton Kirk Royal Academy of Arts
Farmer Ferdinand Hudson, music.composition.lyricist, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Stayin' Alive
Spin Records, music.record_label.artist, Robin Gibb
Bartolomeo Cristofori, people.person.profession, Instrument maker
Robin Gibb, music.artist.label, Universal Music Group
I Don't Know Why I Bother With Myself, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0rtqhhv
Robin-John Gibb, people.person.nationality, United Kingdom
I Am the World, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0rqm1ny
Robin Gibb, film.actor.film, m.0gxjv_w
Farmer Ferdinand Hudson, music.composition.composer, Robin Gibb
Robin Gibb, people.person.children, Melissa Gibb
We Lost the Road, music.composition.composer, Robin Gibb
Piano, base.argumentmaps.original_idea.innovator, Bartolomeo Cristofori
You Win Again, music.composition.composer, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, You Win Again
m.0cs3f3v, film.personal_film_appearance.person, Robin Gibb
Robin Gibb, people.person.profession, Singer
Robin Gibb with the Frankfurt Neue Philharmonic Orchestra: Live, film.film.starring, m.0gxgcrl
Robin Gibb, music.artist.track_contributions, m.0qb74z3
Robin Gibb, music.artist.label, SPV GmbH
Turn of the Century, music.composition.lyricist, Robin Gibb
I'm Weeping, music.composition.composer, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Great Caesar's Ghost
50 St. Catherine's Drive, music.album.artist, Robin Gibb
Mother and Jack, music.recording.artist, Robin Gibb
Robin Gibb, music.artist.album, My Favourite Christmas Carols
Desire, music.composition.composer, Robin Gibb
m.0rs8psf, music.track_contribution.contributor, Robin Gibb
Robin Gibb, freebase.valuenotation.is_reviewed, Country of nationality
Robin Gibb, music.group_member.membership, m.0x0zf4l
Robin Gibb, music.group_member.membership, m.010jv04w
Robin Gibb, music.lyricist.lyrics_written, Turn of the Century
2 Years On, music.composition.lyricist, Robin Gibb
m.011ktvvg, film.personal_film_appearance.person, Robin Gibb
m.010jv04w, music.group_membership.member, Robin Gibb
You Win Again, music.recording.artist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0q6t288
Robin Gibb, common.topic.article, m.0137hw
Robin Gibb, tv.tv_actor.guest_roles, m.0dl3gvh
Robin Gibb, music.artist.genre, Blue-eyed soul
One Minute Woman, music.composition.lyricist, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Come On Over
Walls Have Eyes, music.album.artist, Robin Gibb
Robin Gibb, people.person.spouse_s, m.0t__qn5
m.01389bg2, music.track_contribution.contributor, Robin Gibb
Sky West And Crooked, music.recording.artist, Robin Gibb
I Close My Eyes, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0138cs_4
Robin Gibb, music.artist.track_contributions, m.0rqmhsz
August October, music.recording.artist, Robin Gibb
Robin Gibb, music.artist.album, How Old Are You
Love Me, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0rqky37
m.0138d45k, music.track_contribution.contributor, Robin Gibb
Bartolomeo Cristofori, people.person.places_lived, m.04hx3pj
One Million Years, music.composition.lyricist, Robin Gibb
Mother of Love, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.genre, Baroque pop
Robin Gibb with the Frankfurt Neue Philharmonic Orchestra: Live, film.film.country, United States of America
Robin Gibb with the Frankfurt Neue Philharmonic Orchestra: Live, common.topic.notable_types, Film
Robin Gibb, tv.tv_actor.guest_roles, m.0bvyk10
Horizontal, music.composition.lyricist, Robin Gibb
m.0138bht4, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0q6t150
Robin Gibb, business.board_member.leader_of, m.0113jx8m
Robin-John Gibb, common.topic.notable_types, Person
Robin Gibb, music.album.release_type, EP
Robin Gibb, music.producer.tracks_produced, I Surrender
Angela, music.composition.composer, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Mother and Jack
Robin Gibb, music.lyricist.lyrics_written, In My Own Time
Saved by the Bell, music.composition.composer, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0q823yf
I'm Weeping, music.composition.lyricist, Robin Gibb
m.0rqky37, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.producer.tracks_produced, Alone
Robin Gibb, music.lyricist.lyrics_written, Sky West And Crooked
Juliet, music.composition.lyricist, Robin Gibb
The Longest Night, music.composition.composer, Robin Gibb
Robin Gibb, common.topic.webpage, m.0bnt5t8
Stayin' Alive, music.composition.composer, Barry, Robin & Maurice Gibb
Mother and Jack, music.composition.lyricist, Robin Gibb
m.0q6t150, music.track_contribution.contributor, Robin Gibb
Stayin' Alive, music.composition.composer, Robin Gibb
Maurice Gibb, music.group_member.instruments_played, Piano
Bartolomeo Cristofori, base.argumentmaps.innovator.original_ideas, Piano
Great Caesar's Ghost, music.composition.lyricist, Robin Gibb
Sincere Relation, music.composition.composer, Robin Gibb
Bartolomeo Cristofori, people.person.nationality, Italy
http://www.discogs.com/artist/Robin+Gibb, common.webpage.category, Topic Webpage
m.0qjlk0s, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, 2 Years On
One Minute Woman, music.composition.composer, Robin Gibb
Mother of Love, music.recording.artist, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Woman in Love
More Than a Woman, music.composition.composer, Robin Gibb
Robin-John Gibb, people.person.profession, Actor
Robin Gibb, common.topic.image, RobinGibb
HOW DEEP IS YOUR LOVE, music.composition.composer, Robin Gibb
Giving Up The Ghost, music.composition.lyricist, Robin Gibb
Craise Finton Kirk Royal Academy of Arts, music.composition.lyricist, Robin Gibb
Robin Gibb, broadcast.artist.content, radioIO 80s POP
Engines And Airplanes, music.recording.artist, Robin Gibb
Robin Gibb, common.topic.notable_types, Musical Artist
One Million Years, music.composition.composer, Robin Gibb
Robin Gibb, music.group_member.instruments_played, Piano
Robin Gibb, people.person.children, Robin-John Gibb
Robin Gibb, people.person.spouse_s, m.0t__nyy
Desire, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0138988c
Craise Finton Kirk Royal Academy of Arts, music.composition.composer, Robin Gibb
m.0w8g3sr, music.group_membership.member, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0138b7w_
Charade, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.013885yn
m.0q823yf, music.track_contribution.contributor, Robin Gibb
Saved by the Bell, music.recording.artist, Robin Gibb
RobinGibb, common.image.size, m.03sy8s5
Juliet (Unlimited remix), music.recording.artist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0q827sc
The Longest Night, music.composition.lyricist, Robin Gibb
Dwina Murphy-Gibb, people.person.children, Robin-John Gibb
My Lover's Prayer, music.recording.artist, Robin Gibb
Engines And Airplanes, music.composition.lyricist, Robin Gibb
Alone Again, music.composition.lyricist, Robin Gibb
Robin Gibb, music.artist.album, Ellan Vannin
Robin Gibb, people.person.sibling_s, m.0j8px2n
Robin Gibb, freebase.valuenotation.is_reviewed, Date of birth
Robin Gibb, music.lyricist.lyrics_written, Angela
How Old Are You, music.album.artist, Robin Gibb
Juliet, music.recording.artist, Robin Gibb
Lord Bless All, music.recording.artist, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Rings Around the Moon
Bartolomeo Cristofori di Francesco, common.image.size, m.0kk7j2
Bartolomeo Cristofori, people.person.profession, Inventor
Bartolomeo Cristofori, common.topic.notable_types, Inventor
Robin Gibb, music.lyricist.lyrics_written, Alan Freeman Days
Robin Gibb, music.artist.track_contributions, m.0rqxn5l
Robin Gibb, tv.tv_actor.guest_roles, m.0g76sj5
Robin Gibb, people.person.profession, Actor
Robin Gibb, people.person.places_lived, m.03pskk5
Turning Tide, music.composition.lyricist, Robin Gibb
m.01388zs6, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Juliet
Bartolomeo Cristofori, law.inventor.inventions, Piano
Robin's Reign, music.album.artist, Robin Gibb
Robin Gibb, people.person.parents, Hugh Gibb
I Surrender, music.composition.composer, Robin Gibb
m.0gxgcrl, film.performance.film, Robin Gibb with the Frankfurt Neue Philharmonic Orchestra: Live
My Lover's Prayer, music.composition.composer, Robin Gibb
Great Caesar's Ghost, music.composition.composer, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0138bht4
Robin Gibb, common.topic.notable_types, Musical Album
I Close My Eyes, music.composition.composer, Robin Gibb
Robin Gibb, music.artist.genre, Pop rock
Barbara Gibb, people.person.children, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0qjlk0s
Robin Gibb, music.artist.track_contributions, m.01389bg2
Robin Gibb, people.person.sibling_s, m.02sn9y3
Sky West And Crooked, music.composition.lyricist, Robin Gibb
I Am the World, music.composition.composer, Robin Gibb
Closer Than Close, music.recording.producer, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Lord Bless All
Robin Gibb, tv.tv_actor.guest_roles, m.0dkhm76
m.0k33f9, film.performance.actor, Robin Gibb
Robin Gibb, film.actor.film, m.0gxhk6h
Robin Gibb, music.artist.genre, New Wave
Robin Gibb, music.artist.track_contributions, m.01388_b1
Robin Gibb, music.lyricist.lyrics_written, I'm Weeping
m.0110253_, music.track_contribution.contributor, Robin Gibb
m.0q6t288, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.artist.album, Juliet
Juliet, music.composition.composer, Robin Gibb
Engines And Airplanes, music.composition.composer, Robin Gibb
Woman in Love, music.composition.composer, Robin Gibb
Robin Gibb, people.person.profession, Songwriter
Robin Gibb, music.featured_artist.recordings, Don't Cry Alone
Robin Gibb, music.lyricist.lyrics_written, Giving Up The Ghost
Robin Gibb, music.artist.album, Secret Agent
Robin Gibb, people.person.profession, Film Score Composer
Robin Gibb, music.artist.track_contributions, m.0qgzddk
Robin Gibb, music.artist.track_contributions, m.0138d45k
Farmer Ferdinand Hudson, music.recording.artist, Robin Gibb
Please Read Me, music.composition.lyricist, Robin Gibb
One Million Years, music.recording.artist, Robin Gibb
Juliet, music.album.artist, Robin Gibb
m.0q824c1, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Farmer Ferdinand Hudson
I Surrender, music.recording.producer, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Saved by the Bell
Robin Gibb, people.person.nationality, United Kingdom
Hugh Gibb, people.person.children, Robin Gibb
m.0h4x2l7, film.personal_film_appearance.person, Robin Gibb
Robin Gibb, freebase.valuenotation.is_reviewed, Gender
m.0138d43p, music.track_contribution.contributor, Robin Gibb
Never Been Alone, music.composition.lyricist, Robin Gibb
Bartolomeo Cristofori, people.person.gender, Male
Magnetic Tour, music.album.artist, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Sing Slowly Sisters
RobinGibb, common.image.appears_in_topic_gallery, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Turning Tide
m.0rtqhhv, music.track_contribution.contributor, Robin Gibb
Saved by the Bell, music.composition.lyricist, Robin Gibb
m.0113jx8m, organization.leadership.person, Robin Gibb
Sing Slowly Sisters, music.album.artist, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0rs8psf
Horizontal, music.composition.composer, Robin Gibb
You Win Again, music.composition.composer, Barry, Robin & Maurice Gibb
How Can You Mend a Broken Heart, music.composition.composer, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Alone Again
Robin Gibb, people.person.children, Snow Evelyn Robin Juliet Gibb
Saturday Night Fever, film.film.music, Robin Gibb
Robin Gibb, music.artist.label, ATCO Records
http://www.discogs.com/artist/Robin+Gibb, common.webpage.topic, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0rvtrj_
Robin Gibb, film.music_contributor.film, Saturday Night Fever
Robin Gibb, music.artist.label, EMI America Records
m.0qd6s4s, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.artist.genre, Synthpop
The Titanic Requiem, music.album.artist, Robin Gibb
Oval spinet, law.invention.inventor, Bartolomeo Cristofori
Robin Gibb, music.artist.genre, Disco
Robin Gibb, music.artist.label, RSO Records
Robin Gibb, people.person.children, Spencer Gibb
Robin Gibb, music.lyricist.lyrics_written, One Minute Woman
Robin Gibb, music.artist.track_contributions, m.01388zs6
Bartolomeo Cristofori, common.topic.notable_for, g.125fs5bh2
m.0138d_cr, music.track_contribution.contributor, Robin Gibb
Robin Gibb, business.board_member.organization_board_memberships, m.063tnk8
Robin Gibb, music.artist.genre, Psychedelic rock
We Lost the Road, music.composition.lyricist, Robin Gibb
My Lover's Prayer, music.composition.lyricist, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Irresistible Force
Smoke and Mirrors, music.composition.composer, Robin Gibb
Robin Gibb, music.artist.album, Live with the Neue Philharmonie Frankfurt Orchestra
Robin Gibb, tv.tv_actor.guest_roles, m.0bvzpck
You Win Again, music.composition.lyricist, Robin Gibb
Robin Gibb, music.producer.releases_produced, Size Isn't Everything
m.0jzmcs6, award.award_honor.award_winner, Robin Gibb
Robin Gibb, music.artist.genre, Pop music
http://www.discogs.com/artist/Robin+Gibb, common.webpage.resource, m.0bk1l6j
Robin Gibb, music.lyricist.lyrics_written, I Am the World
Robin Gibb, music.artist.track_contributions, m.01388_p3
Robin Gibb, music.lyricist.lyrics_written, I Don't Know Why I Bother With Myself
Robin Gibb, music.lyricist.lyrics_written, The Longest Night
How Can You Mend a Broken Heart, music.composition.lyricist, Robin Gibb
Robin Gibb, common.topic.webpage, m.05nn6g9
Piano, law.invention.inventor, Bartolomeo Cristofori
Robin Gibb, freebase.valuenotation.is_reviewed, Date of death
Robin-John Gibb, people.person.gender, Male
Robin Gibb, music.artist.track_contributions, m.0qd6s4s
Robin Gibb, music.lyricist.lyrics_written, August October
Robin Gibb, music.artist.track_contributions, m.0rs41x9
Robin Gibb, people.person.sibling_s, m.02sn90z
m.0qb74z3, music.track_contribution.contributor, Robin Gibb
Alone Again, music.composition.composer, Robin Gibb
Alone, music.recording.producer, Robin Gibb
m.0bnt5t8, common.webpage.topic, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Engines And Airplanes
Live with the Neue Philharmonie Frankfurt Orchestra, music.album.artist, Robin Gibb
m.0138b7w_, music.track_contribution.contributor, Robin Gibb
m.0q827sc, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Charade
Robin-John Gibb, common.topic.notable_for, g.12559nq3j
Robin Gibb, music.producer.tracks_produced, Smoke and Mirrors
Robin Gibb, freebase.valuenotation.is_reviewed, Place of birth
Robin Gibb, music.artist.genre, Adult contemporary music
Robin Gibb, music.producer.releases_produced, Still Waters
Robin Gibb, music.artist.track_contributions, m.0138d_cr
Robin Gibb, music.artist.track_contributions, m.0q6t2nc
Robin Gibb, music.lyricist.lyrics_written, Please Read Me
Robin Gibb, music.lyricist.lyrics_written, How Can You Mend a Broken Heart
Robin Gibb, music.featured_artist.recordings, I've Gotta Get a Message to You
Irresistible Force, music.composition.composer, Robin Gibb
BartolomeoCristofori, common.image.appears_in_topic_gallery, Bartolomeo Cristofori
Robin Gibb, music.artist.concert_tours, An Evening of the Bee Gees Greatest Hits Tour
Robin Gibb, music.lyricist.lyrics_written, Desire
Robin Gibb, freebase.valuenotation.is_reviewed, Siblings
m.05nn6g9, common.webpage.topic, Robin Gibb
m.0110195t, music.track_contribution.contributor, Robin Gibb
Come On Over, music.composition.composer, Robin Gibb
m.01389x0w, music.track_contribution.contributor, Robin Gibb
World, music.composition.lyricist, Robin Gibb
Robin Gibb, tv.tv_actor.guest_roles, m.0bvtykt
Closer Than Close, music.composition.composer, Robin Gibb
Rings Around the Moon, music.composition.lyricist, Robin Gibb
Woman in Love, music.composition.lyricist, Robin Gibb
Tony Manero, film.film.music, Robin Gibb
Mother and Jack, music.composition.composer, Robin Gibb
Bartolomeo Cristofori, law.invention.inventor, Piano
Andy Gibb, music.group_member.instruments_played, Guitar
Robin Gibb, common.topic.webpage, http://www.discogs.com/artist/Robin+Gibb
Sing Slowly Sisters, music.recording.artist, Robin Gibb
Robin Gibb, freebase.valuenotation.is_reviewed, Place of death
Robin Gibb, music.group_member.membership, m.01tb9tc
In My Own Time, music.composition.lyricist, Robin Gibb
August October, music.composition.lyricist, Robin Gibb
Sing Slowly Sisters, music.composition.composer, Robin Gibb
Islands in the Stream, music.composition.composer, Robin Gibb
Robin Gibb, music.album.genre, Dance-pop
m.0rs41x9, music.track_contribution.contributor, Robin Gibb
Never Been Alone, music.composition.composer, Robin Gibb
Robin Gibb, music.artist.track_contributions, m.0q9743v
Robin Gibb, music.artist.track_contributions, m.0rts8fx
m.0rqm1ny, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.artist.album, Sing Slowly Sisters
Juliet (Factory Team remix), music.recording.artist, Robin Gibb
Robin-John Gibb, common.topic.article, m.0j9kg5w
m.0qgzddk, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Never Been Alone
Robin Gibb, music.artist.genre, Funk
Robin Gibb, music.artist.label, Bertelsmann Music Group
Bartolomeo Cristofori, law.inventor.inventions, Oval spinet
Robin Gibb, freebase.valuenotation.is_reviewed, Profession
m.0rqp656, music.track_contribution.contributor, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, My Lover's Prayer
Robin Gibb, music.artist.album, Robin's Reign
Robin Gibb, film.actor.film, m.0k33f9
Robin Gibb, common.topic.notable_for, g.1256t76l4
Robin Gibb, music.lyricist.lyrics_written, More Than a Woman
Robin Gibb, music.artist.track_contributions, m.0110253_
Alone, music.composition.composer, Robin Gibb
More Than a Woman, music.composition.lyricist, Robin Gibb
Robin Gibb, music.lyricist.lyrics_written, Love Me
Bartolomeo Cristofori, common.topic.image, Bartolomeo Cristofori di Francesco
Staying Alive, film.film.music, Robin Gibb
m.01tb9tc, music.group_membership.member, Robin Gibb

Answer: Piano