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: who played betty rizzo in grease? 
Knowledge Triplets: John F. Burnett, film.editor.film, Grease 2
m.0tlxjnk, film.performance.film, Grease 2
m.09vkl01, film.performance.film, Grease
m.0tl_j0c, film.performance.film, Grease 2
m.0x2r7yz, film.performance.film, Grease 2
Grease 2, film.film.country, United States of America
Grease, film.film.runtime, m.0jy_c6
Grease, film.film.film_festivals, 2009 Philadelphia QFEST
Grease, film.film.starring, m.0y5cdm0
Grease 2, film.film.starring, m.0tl_j0c
m.0tl_pd1, film.performance.film, Grease 2
Warren Casey, film.film_story_contributor.film_story_credits, Grease
Grease 2, film.film.starring, m.0tlwr8d
Grease, film.film.starring, m.0jy_bm
Grease, film.film.starring, m.0y5c5ls
Grease, film.film.starring, m.0y5cllv
Grease, film.film.release_date_s, m.0j58gny
Grease, music.album.artist, Olivia Newton-John
Grease, film.film.starring, m.05pxb2r
m.09ybsgm, common.webpage.topic, Grease
Jim Jacobs, music.artist.album, Grease: The Musical
Grease, common.topic.webpage, m.094g4yr
Grease 2, film.film.starring, m.0gxkb4k
Grease, film.film.starring, m.0y5c6dp
Grease 2, film.film.starring, m.03jt32v
Jim Jacobs, music.artist.album, Grease (1994 Broadway revival cast)
Grease 2, film.film.starring, m.03jpqg3
m.0y5cf2w, film.performance.film, Grease
Grease, film.film.starring, m.0jy_b9
Robert Stigwood, theater.theater_producer.plays_produced, Grease
Grease, film.film.starring, m.0y5c5hl
Grease, film.film.starring, m.0y5c2q5
Grease, film.film.release_date_s, m.0ngp6sl
Grease, common.topic.webpage, m.094jbh2
Grease film series, common.topic.article, m.0ch1585
Grease, common.topic.webpage, m.09426t3
m.0y5c5yn, film.performance.film, Grease
m.0y5c5hl, film.performance.film, Grease
Grease, film.film.starring, m.0y5c6x5
Grease, film.film.starring, m.0y5c618
m.0tl_q5n, film.performance.film, Grease 2
Grease, common.topic.webpage, m.09x6vtd
m.0jy_ds, film.performance.film, Grease 2
m.0jy_b9, film.performance.film, Grease
Grease, film.film.sequel, Grease 2
Albert Wolsky, film.film_costumer_designer.costume_design_for_film, Grease
Grease, film.film.starring, m.0y5c6pt
Grease, film.film.starring, m.09vkl06
Grease, film.film.distributors, m.05nncrf
Grease, common.topic.webpage, m.094g9by
Grease, film.film.starring, m.0y5cf2w
Grease, film.film.starring, m.0cg12nj
m.0y5cdwn, film.performance.film, Grease
Grease 2, film.film.costume_design_by, Robert De Mora
Grease, film.film.genre, Musical comedy
Grease, film.film.release_date_s, m.0ngp642
Grease, film.film.starring, m.0y5cmg3
m.0y5c3wt, film.performance.film, Grease
Grease, common.topic.webpage, m.09xryyk
Grease, film.film.starring, m.0y5c1ny
Grease, film.film.genre, Romantic comedy
Grease, film.film.starring, m.0cg0sfm
Grease 2, film.film.starring, m.0jy_d9
Warren Casey, music.artist.album, Grease (Deutsche Originalversion)
m.0tlxjfr, film.performance.film, Grease 2
m.0y5bxdy, film.performance.film, Grease
m.0y5c62y, film.performance.film, Grease
m.0y5cllv, film.performance.film, Grease
m.0jy_dg, film.performance.film, Grease 2
Grease, film.film.starring, m.0y5cdql
Grease 2, film.film.starring, m.0tlx31w
Jim Jacobs, music.artist.album, Grease: The Musical: Live at the Musical Theater Basel
Warren Casey, music.artist.album, Grease
Grease, film.film.rating, PG (USA)
Grease 2, film.film.starring, m.0jy_dm
Jim Jacobs, film.music_contributor.film, Grease
m.0y5cl3z, film.performance.film, Grease
m.0y5cmp0, film.performance.film, Grease
Gene Callahan, film.film_production_designer.films_production_designed, Grease 2
Grease, film.film.starring, m.0y5cf9k
m.0tlx2vc, film.performance.film, Grease 2
Grease, film.film.cinematography, Bill Butler
Grease 2, film.film.starring, m.0tlx48q
m.0y5cmbx, film.performance.film, Grease
Vince Fontaine, theater.theater_character.plays_appears_in, Grease
m.0jy_bm, film.actor.film, Stockard Channing
Grease, film.film.starring, m.0y5c3pm
m.03jt32v, film.performance.film, Grease 2
Grease, film.film.starring, m.0y5cfp7
m.0gyylp6, film.performance.film, Grease 2
m.09vkl0c, film.performance.film, Grease
m.0y5cn0w, film.performance.film, Grease
m.0tlx5bv, film.performance.film, Grease 2
Grease 2, film.film.starring, m.0tl_r4h
m.0y5c5r0, film.performance.film, Grease
Grease 2, film.film.starring, m.0tlx2z_
Grease, film.film.genre, Romance Film
Grease, common.topic.webpage, m.093_sys
Warren Casey, music.artist.album, Grease: The Musical: Live at the Musical Theater Basel
m.0y5cdql, film.performance.film, Grease
m.0jy_by, film.performance.film, Grease
Grease, film.film.starring, m.0y5c6sy
Grease, common.topic.article, m.0284n01
Grease 2, film.film.starring, m.0tlx75l
Grease, film.performance.film, m.0jy_bm
m.0y5c0qr, film.performance.film, Grease
Grease 2, film.film.directed_by, Patricia Birch
Grease 2, film.film.starring, m.0tlwkjm
Grease, film.film.starring, m.09vkl0j
Grease 2, film.film.starring, m.0tlxh_r
Robert Stigwood, film.producer.film, Grease
Grease 2, film.film.starring, m.0tlwjpr
m.0y5c6zw, film.performance.film, Grease
Grease: The Musical, music.album.artist, Jim Jacobs
Grease, film.film.written_by, Bronte Woodard
Grease 2, film.film.produced_by, Robert Stigwood
Grease 2, film.film.starring, m.03jrgw7
m.0tlxh21, film.performance.film, Grease 2
John F. Burnett, film.editor.film, Grease
Grease, film.film.film_casting_director, Joel Thurm
Grease 2, film.film.starring, m.0tlwjt9
m.011r0f76, film.film_regional_release_date.film, Grease
Grease, film.film.release_date_s, m.011r08_b
Grease, common.topic.webpage, m.0js9lph
Grease, film.film.distributors, m.0js9lmn
Grease 2, film.film.starring, m.0tlxw2y
Grease, film.film.film_series, Grease film series
Jim Jacobs, music.artist.album, Grease (1993 original London cast)
Grease, film.film.costume_design_by, Albert Wolsky
m.0y5bwv1, film.performance.film, Grease
m.0tlx75l, film.performance.film, Grease 2
Grease, film.film.genre, Teen film
Grease 2, film.film.genre, Musical Drama
Grease, common.topic.webpage, m.09ybsgm
Grease, common.topic.webpage, m.094k6wf
Warren Casey, music.artist.album, Grease (1972 original Broadway cast)
m.0cg89gc, film.performance.film, Grease 2
Grease 2, film.film.starring, m.0tl_hrk
m.0y5cd1r, film.performance.film, Grease
m.0y5c6l7, film.performance.film, Grease
m.0y5cd7h, film.performance.film, Grease
m.0y5c699, film.performance.film, Grease
Warren Casey, music.artist.album, Grease: Das Musical
Grease 2, film.film.starring, m.03jp_2t
Grease, film.film.music, Jim Jacobs
m.0y5ck6h, film.performance.film, Grease
Grease 2, film.film.starring, m.0jy_ds
Grease 2, film.film.starring, m.0tlwk0p
Grease, film.film.starring, m.0y5c6vh
Grease 2, film.film.starring, m.0tlwqyz
m.0tlwjt9, film.performance.film, Grease 2
Grease, film.film.release_date_s, m.0ngp6jm
Joel Thurm, film.film_casting_director.films_casting_directed, Grease
Grease 2, film.film.rating, PG (USA)
Grease 2, film.film.starring, m.0tlx4gj
Grease, film.film.starring, m.0y5cmp0
m.0tl_qr3, film.personal_film_appearance.film, Grease 2
m.0ngp794, film.film_regional_release_date.film, Grease
m.0jy_dm, film.performance.film, Grease 2
m.09vkl0j, film.performance.film, Grease
Grease 2, film.film.starring, m.0tlwwm3
m.0y5c3pm, film.performance.film, Grease
m.0y5c5wc, film.performance.film, Grease
m.0y5bxg_, film.performance.film, Grease
m.0jy_bs, film.performance.film, Grease
Warren Casey, music.artist.album, Grease (Toronto Musical Revue)
m.0tlw6jf, film.performance.film, Grease 2
m.09vkl06, film.performance.film, Grease
Grease 2, film.film.starring, m.0jy_dg
m.0y5cf9k, film.performance.film, Grease
Grease 2, film.film.starring, m.0tlxjnk
Grease 2, film.film.starring, m.0cfzl_j
m.0y5c6vh, film.performance.film, Grease
Grease, film.film.starring, m.0y5bxdy
m.0y5cjv1, film.performance.film, Grease
m.05pxb2r, film.performance.film, Grease
m.0ngp78h, film.film_regional_release_date.film, Grease
Grease, film.film.starring, m.0y5cd7h
m.0y5c1ny, film.performance.film, Grease
Grease 2, film.film.starring, m.0tlx2vc
Grease 2, film.film.starring, m.0jy_d4
Grease, film.film.starring, m.0y5bxg_
Grease, common.topic.webpage, m.09xkzh7
Grease, film.film.starring, m.0y5c35f
m.03jpqg3, film.performance.film, Grease 2
m.0tlwk0p, film.performance.film, Grease 2
Grease, film.film.language, English Language
Grease, film.film.starring, m.0jy_by
Jim Jacobs, film.film_story_contributor.film_story_credits, Grease
m.0y5c2q5, film.performance.film, Grease
Grease 2, film.film.starring, m.0tlw6jf
Grease, film.film.directed_by, Randal Kleiser
Grease, film.film.release_date_s, m.0ngp6rf
Grease 2, film.film.starring, m.0tlw5qs
m.0tl_r4h, film.performance.film, Grease 2
m.0y5cdm0, film.performance.film, Grease
Grease, film.film.country, United States of America
Grease, film.film.starring, m.0y5cmbx
m.0tlwr0z, film.performance.film, Grease 2
Grease, film.film.film_set_decoration_by, James L. Berkey
Grease 2, film.film.personal_appearances, m.0tl_qr3
Grease, film.film.film_festivals, 2013 Gimli Film Festival
Betty Rizzo, theater.theater_character.plays_appears_in, Grease
Grease 2, film.film.starring, m.0tl_jf3
m.0jy_d9, film.performance.film, Grease 2
m.0tlx31w, film.performance.film, Grease 2
m.0j58gny, film.film_regional_release_date.film, Grease
Grease 2, film.film.starring, m.0tlwwgt
m.0y5c618, film.performance.film, Grease
The Teen Angel, theater.theater_character.plays_appears_in, Grease
m.0cg0sfm, film.performance.film, Grease
Grease, film.film.starring, m.0jy_bs
Grease, film.film.starring, m.0y5c3wt
Grease, common.topic.webpage, m.094h6f7
m.0y5cfp7, film.performance.film, Grease
Grease, film.film.release_date_s, m.011r0f76
Danny Zuko, theater.theater_character.plays_appears_in, Grease
Grease 2, film.film.genre, Romantic comedy
Marty Maraschino, theater.theater_character.plays_appears_in, Grease
Grease, film.film.starring, m.0y5c70g
m.0cg12nj, film.performance.film, Grease
Grease, film.film.music, Michael Gibson
Grease, common.topic.webpage, m.03lf363
Sandy Olsson, theater.theater_character.plays_appears_in, Grease
Grease: The Musical, music.album.artist, Warren Casey
Grease 2, film.film.produced_by, Allan Carr
m.094h6f7, common.webpage.topic, Grease
Warren Casey, theater.theatrical_composer.plays_composed, Grease
Betty Rizzo, film.film_character.portrayed_in_films, m.0jy_bm
m.02vbpmt, film.performance.film, Grease 2
Grease 2, film.film.starring, m.0tl_q5n
m.0y5c6sy, film.performance.film, Grease
Eugene Felnic, theater.theater_character.plays_appears_in, Grease
Putzie, theater.theater_character.plays_appears_in, Grease
Grease, film.film.genre, Backstage Musical
m.0cfzl_j, film.performance.film, Grease 2
Grease, film.film.rating, PG-13 (USA)
Grease, film.film.release_date_s, m.0ngp6b7
Grease 2, film.film.starring, m.0tlxjfr
m.0y5b75j, film.performance.film, Grease
m.0y5c70g, film.performance.film, Grease
m.0478q80, music.recording_contribution.contributor, Stockard Channing
Cha-Cha DiGregorio, theater.theater_character.plays_appears_in, Grease
Grease, film.film.starring, m.0y5c23d
Grease 2, film.film.starring, m.0tlw64b
m.0tl_jf3, film.performance.film, Grease 2
m.09426t3, common.webpage.resource, ''Grease'' continues to please fans
Grease, film.film.genre, LGBT
Grease, film.film.soundtrack, Grease
m.0tlwkjm, film.performance.film, Grease 2
Grease, film.film.starring, m.02vcygh
Grease 2, film.film.starring, m.0tlxh21
Grease, film.film.music, Warren Casey
m.03jrgw7, film.performance.film, Grease 2
Grease, film.film.story_by, Warren Casey
Grease 2, film.film.starring, m.0jy_c_
Grease 2, film.film.genre, Musical comedy
Grease, film.film.release_date_s, m.0ngp6nf
m.0ngp6b7, film.film_regional_release_date.film, Grease
John Travolta, music.artist.album, You're The One That I Want: Grease
Grease, film.film.release_date_s, m.011r0fhg
Grease 2, film.film.starring, m.0tlwqtz
Jim Jacobs, theater.theatrical_composer.plays_composed, Grease
m.0tlww1q, film.performance.film, Grease 2
Grease, film.film.starring, m.0y5cd1r
Grease, film.film.produced_by, Allan Carr
Warren Casey, music.artist.album, Grease (1993 original London cast)
m.0y5c5ls, film.performance.film, Grease
m.0tlxh_r, film.performance.film, Grease 2
Grease 2, film.film.film_casting_director, Geoffrey Johnson
Grease, film.film.release_date_s, m.0jsm_y0
m.0y5c59g, film.performance.film, Grease
Jim Jacobs, music.artist.album, Grease (1972 original Broadway cast)
Grease 2, film.film.starring, m.0tl_pd1
Grease, film.film.starring, m.0jy_bg
Grease 2, film.film.executive_produced_by, Bill Oakes
Grease, film.film.starring, m.0y5c5r0
m.0y5c6pt, film.performance.film, Grease
m.0tlxhg0, film.performance.film, Grease 2
m.0tlwjpr, film.performance.film, Grease 2
Grease 2, film.film.film_production_design_by, Gene Callahan
Grease, film.film.starring, m.0y5c5p1
Grease, film.film.starring, m.0y5c6l7
Warren Casey, music.artist.album, Grease (1994 Broadway revival cast)
Robert Stigwood, film.producer.film, Grease 2
Bill Butler, film.cinematographer.film, Grease
Grease, common.topic.webpage, m.09406mp
Warren Casey, film.music_contributor.film, Grease
Grease, film.film.genre, Comedy
Bronte Woodard, film.writer.film, Grease
Grease, film.film.release_date_s, m.0ngp6ls
Grease, film.film.starring, m.0y5ck6h
m.0y5c2j7, film.performance.film, Grease
Grease, common.topic.webpage, m.094mcfm
Grease, film.film.produced_by, Robert Stigwood
m.0y5cfcx, film.performance.film, Grease
Grease 2, film.film.starring, m.0x2r7yz
Grease, common.topic.webpage, m.09yb6hw
Warren Casey, theater.theatrical_lyricist.play_lyrics_written, Grease
Grease, film.film.starring, m.0y5c5yn
Grease 2, film.film.cinematography, Frank Stanley
Grease, film.film.written_by, Allan Carr
Grease, film.film.starring, m.0y5c62y
Grease 2, film.film.starring, m.0tlxhg0
Doody, theater.theater_character.plays_appears_in, Grease
Grease, music.album.contributor, m.0478q80
m.0tlwwm3, film.performance.film, Grease 2
m.0y5c65x, film.performance.film, Grease
Principal McGee, theater.theater_character.plays_appears_in, Grease
Grease 2, film.film.written_by, Ken Finkleman
m.0y5c23d, film.performance.film, Grease
m.0y5c6x5, film.performance.film, Grease
Grease, film.film.starring, m.0y5cdj_
Grease, music.album.artist, John Travolta
John Travolta, music.artist.album, Grease
m.0tlwr8d, film.performance.film, Grease 2
m.0ngp66d, film.film_regional_release_date.film, Grease
m.0tlw64b, film.performance.film, Grease 2
m.03jp_9z, film.performance.film, Grease 2
m.0y5cdj_, film.performance.film, Grease
Allan Carr, film.producer.film, Grease
m.0jy_bg, film.performance.film, Grease
Grease, film.film.starring, m.0y5bwv1
m.0tlx4gj, film.performance.film, Grease 2
Grease 2, film.film.genre, Drama
Grease, common.topic.webpage, m.09xst47
Grease, common.topic.webpage, m.094h3mz
m.0tl_hrk, film.performance.film, Grease 2
m.02vcygh, film.performance.film, Grease
Grease, film.film.starring, m.0y5c6zw
Grease 2, film.film.genre, Comedy
m.0tlwqyz, film.performance.film, Grease 2
Jim Jacobs, music.artist.album, Grease (Deutsche Originalversion)
m.09xst47, common.webpage.topic, Grease
Grease 2, film.film.runtime, m.040qxph
m.0y5c5d_, film.performance.film, Grease
Grease, film.film.starring, m.0y5cl3z
Grease, common.topic.webpage, m.09xrx5w
Grease, film.film.starring, m.0y5cn0w
Jim Jacobs, music.artist.album, Grease
m.0tlx48q, film.performance.film, Grease 2
Grease 2, film.film.starring, m.0tl_qbz
Philip M. Jeffries, film.film_production_designer.films_production_designed, Grease
Grease 2, film.film.starring, m.02vbpmt
m.0tlwqtz, film.performance.film, Grease 2
Randal Kleiser, film.director.film, Grease
m.0jy_c_, film.performance.film, Grease 2
Grease 2, film.film.starring, m.0gyylp6
Grease, film.film.release_date_s, m.0ngp70j
Grease 2, film.film.starring, m.0tlww4g
Jan, theater.theater_character.plays_appears_in, Grease
Grease, common.topic.webpage, m.09409_5
m.0jy_c6, film.film_cut.film, Grease
Warren Casey, music.artist.album, Grease: The Musical
Sonny, theater.theater_character.plays_appears_in, Grease
Jim Jacobs, book.author.works_written, Grease
Grease 2, film.film.starring, m.0tlx5bv
Grease, film.film.release_date_s, m.0ngp72x
m.0jy_bm, film.performance.character, Betty Rizzo
Grease, film.film.country, United States of America
Grease, film.film_featured_song.performed_by, Frankie Avalon
Grease 2, film.film.starring, m.0cg89gc
Grease 2, film.film.edited_by, John F. Burnett
Grease, music.album.artist, Jim Jacobs
Grease 2, film.film.starring, m.03jp_9z
Allan Carr, film.producer.film, Grease 2
Grease, film.film.release_date_s, m.0ngp66d
m.0tlxw2y, film.performance.film, Grease 2
Grease, film.film.distributors, m.0js9lmw
Grease, common.resource.annotations, m.094g4yr
Grease, film.film.starring, m.0y5c699
m.0tlww4g, film.performance.film, Grease 2
m.0y5cdf3, film.performance.film, Grease
Grease, common.topic.webpage, m.09412hj
Grease, film.film.starring, m.0y5c2j7
Grease, film.film.starring, m.0y5c65x
Grease 2, film.film.starring, m.0tlww1q
Patty Simcox, theater.theater_character.plays_appears_in, Grease
Grease 2, film.film.starring, m.0tlww9w
Grease, film.film.distributors, m.0js9ln4
Frank Stanley, film.cinematographer.film, Grease 2
m.0jy_bm, film.performance.film, Grease
Grease, film.film.release_date_s, m.0ngp794
m.0y5cmg3, film.performance.film, Grease
Grease, film.film.story_by, Jim Jacobs
m.09406mp, common.webpage.topic, Grease
Grease, film.film.starring, m.0y5c5d_
Grease, film.film.starring, m.0y5b75j
m.09426t3, common.webpage.topic, Grease
Grease, film.film.starring, m.0y5cdwn
Grease, film.film.starring, m.0y5ck_b
m.0tlwwgt, film.performance.film, Grease 2
Jim Jacobs, music.artist.album, Grease (Toronto Musical Revue)
m.0jy_d4, film.performance.film, Grease 2
Grease, film.film.starring, m.0y5c5wc
Grease 2, film.film.starring, m.0tl_pvj
Grease 2, film.film.genre, Romance Film
Allan Carr, film.writer.film, Grease
Grease, film.film.film_production_design_by, Philip M. Jeffries
Grease, film.film.release_date_s, m.0ngp78h
Grease, music.album.artist, Warren Casey
Grease, common.topic.webpage, m.094pmm0
Grease 2, film.film.film_casting_director, Sally Dennison
Grease, film.film.starring, m.0y5cfcx
m.0y5c6dp, film.performance.film, Grease
Grease, common.topic.webpage, m.093_1ss
Grease, film.film.distributors, m.0js9lnd
Grease, film.film.starring, m.0y5cjv1
m.0y5c35f, film.performance.film, Grease
Kenickie Murdoch, theater.theater_character.plays_appears_in, Grease
m.0y5bxqh, film.performance.film, Grease
Grease 2, film.film.music, Louis St. Louis
m.0tlw5qs, film.performance.film, Grease 2
Frenchy, theater.theater_character.plays_appears_in, Grease
Grease, film.film.edited_by, John F. Burnett
Grease, film.film.starring, m.0y5cdf3
Grease, film.film.starring, m.09vkl0c
m.0tlww9w, film.performance.film, Grease 2
Grease 2, film.film.starring, m.0tlwr0z
Grease, film.film.starring, m.0y5c59g
m.0tlx2z_, film.performance.film, Grease 2
Jim Jacobs, theater.theatrical_lyricist.play_lyrics_written, Grease
Grease, film.film.starring, m.09vkl01
m.0y5ck_b, film.performance.film, Grease
m.0y5c5p1, film.performance.film, Grease
Grease, film.film.starring, m.0y5bxqh
m.03lf363, common.webpage.topic, Grease
United States of America, people.person.nationality, Stockard Channing
Grease, music.composition.recordings, Grease (Frankie Valli)
Warren Casey, book.author.works_written, Grease
James L. Berkey, film.film_set_designer.film_sets_designed, Grease
Grease, film.film.starring, m.0y5c0qr
m.03jp_2t, film.performance.film, Grease 2
Michael Gibson, film.music_contributor.film, Grease

Answer: Stockard Channing