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 was Betty White's spouse to whom she remain the living widow? 
Knowledge Triplets: m.07shtnj, award.award_nomination.award_nominee, Betty White
Betty White, film.actor.film, m.0jvtzt
m.0cg8xhx, film.performance.actor, Betty White
Betty White, freebase.valuenotation.is_reviewed, Place of birth
Betty White, common.topic.webpage, m.0b47cv0
Let It Grow, music.recording.artist, Betty White
Betty White, common.topic.webpage, m.09yx67h
Tess Curtis White, people.person.spouse_s, m.0vp6hm5
Betty White, film.actor.film, m.065rkth
Betty White, award.award_winner.awards_won, m.07tvlj8
Betty White, tv.tv_actor.starring_roles, m.0j9tc_d
I'm Still Hot, music.recording.artist, Betty White
Betty White, film.actor.film, m.08nbz0h
Betty White, film.actor.film, m.03lbz90
Betty White, award.award_nominee.award_nominations, m.0v2v4s4
m.0hnjl5g, award.award_nomination.award_nominee, Betty White
m.0dgl2y6, film.performance.actor, Betty White
m.07shth4, award.award_nomination.award_nominee, Betty White
m.0z85fz7, award.award_honor.award_winner, Betty White
Betty White, people.person.profession, Comedian
m.09xzknq, common.webpage.topic, Betty White
m.0j1tmvf, award.award_honor.award_winner, Betty White
m.07tvlj8, award.award_honor.award_winner, Betty White
m.0bmn13y, tv.regular_tv_appearance.actor, Betty White
m.0wc5bkj, film.performance.actor, Betty White
m.09xh60r, common.webpage.topic, Betty White
Betty White, people.person.places_lived, m.0whx753
Betty White, people.person.profession, Television producer
Betty White, award.award_nominee.award_nominations, m.0911nx5
m.0fq7j41, award.award_nomination.award_nominee, Betty White
m.0nfjnvb, award.award_honor.award_winner, Betty White
Betty White: Another reason to celebrate the glorious Golden Girl, common.resource.annotations, m.09yl50t
m.021_g44, tv.regular_tv_appearance.actor, Betty White
Betty White, tv.tv_actor.starring_roles, m.0bmn13y
Betty White, award.award_nominee.award_nominations, m.01140gjb
Betty White, tv.tv_actor.starring_roles, m.0gy8dsy
m.0gwnx60, film.performance.actor, Betty White
Betty White, tv.tv_actor.starring_roles, m.040k5xs
m.0wczlql, tv.tv_regular_personal_appearance.person, Betty White
Clip du Jour: Ryan Reynolds vs. Betty White, common.resource.annotations, m.09yftxj
Betty White, common.topic.webpage, m.09y5y5n
m.0p82f_x, award.award_honor.award_winner, Betty White
Betty White, people.person.profession, Presenter
Betty White, people.person.profession, Actor
Betty White, tv.tv_actor.starring_roles, m.0f_wr92
Betty White, award.award_nominee.award_nominations, m.07twtqy
m.0911nx5, award.award_nomination.award_nominee, Betty White
Betty White, award.award_nominee.award_nominations, m.07twr55
Betty White, award.award_nominee.award_nominations, m.0myx97j
m.0h5v7cn, film.performance.actor, Betty White
m.07twtqy, award.award_nomination.award_nominee, Betty White
m.0b47cv0, common.webpage.topic, Betty White
Betty White, common.topic.notable_for, g.1259x8jjx
Betty White, award.award_nominee.award_nominations, m.0hnjm03
Betty White, tv.tv_actor.starring_roles, m.07smpyp
Betty White, people.person.education, m.0gy8dq8
The Betty White Show, tv.tv_program.languages, English Language
Betty White, film.actor.film, m.0wc5bkj
Horace Lawrence White, people.person.children, Betty White
Betty White, people.person.parents, Tess Curtis White
m.0ly_zz2, award.award_nomination.award_nominee, Betty White
m.0cqq96r, award.award_honor.award_winner, Betty White
Betty White, award.award_nominee.award_nominations, m.0gjf60m
Betty White, people.person.profession, Author
Betty White, film.person_or_entity_appearing_in_film.films, m.0vtzpty
m.0bns8py, common.webpage.topic, Betty White
m.021_fzm, people.marriage.spouse, Allen Ludden
Betty White, film.actor.film, m.02vd0pj
Betty White, film.actor.film, m.052dlhx
m.01140gjb, award.award_nomination.award_nominee, Betty White
m.0r9jh54, award.award_nomination.award_nominee, Betty White
m.0l7ktdf, tv.regular_tv_appearance.actor, Betty White
m.0hnjm03, award.award_nomination.award_nominee, Betty White
Betty White, award.award_nominee.award_nominations, m.0nfjnxh
Betty White, tv.tv_actor.starring_roles, m.021_g44
m.094h9n9, common.webpage.topic, Betty White
Betty White, tv.tv_actor.starring_roles, m.02t8nt9
Betty White, award.award_nominee.award_nominations, m.07shtmd
m.0gy8dsy, tv.regular_tv_appearance.actor, Betty White
Betty White, music.artist.track, I'm Still Hot
m.07shtkd, award.award_nomination.award_nominee, Betty White
m.07twr55, award.award_nomination.award_nominee, Betty White
m.021_g4g, tv.regular_tv_appearance.actor, Betty White
Betty White, common.topic.notable_types, Film actor
Betty White, award.award_winner.awards_won, m.0vs5fff
Betty White, people.person.languages, English Language
Betty White, award.award_nominee.award_nominations, m.0fq7j41
Sandra Bullock to present SAG lifetime achievement award to Betty White, common.resource.annotations, m.09x69lh
Betty White, people.person.education, m.0d0xjk6
m.0ndsg20, award.award_nomination.award_nominee, Betty White
Betty White, award.award_nominee.award_nominations, m.0k8645h
United States of America, people.person.nationality, Allen Ludden
Betty White, people.person.ethnicity, English American
m.0gjf60m, award.award_nomination.award_nominee, Betty White
m.0dfgk5j, tv.regular_tv_appearance.actor, Betty White
m.0p2gbhk, award.award_nomination.award_nominee, Betty White
m.07t75gg, award.award_nomination.award_nominee, Betty White
m.09xzknq, common.webpage.resource, Happy Birthday, Betty White!
Danish American, people.ethnicity.people, Betty White
Betty White, film.actor.film, m.0vp6gy_
Betty White, tv.tv_actor.starring_roles, m.03jtgw1
Walk in the Light of Darkness, book.written_work.author, Betty White
Betty White, film.actor.film, m.0g99pvg
Betty White, film.actor.film, m.0w28hlt
m.09yl50t, common.webpage.resource, Betty White: Another reason to celebrate the glorious Golden Girl
m.07shtfr, award.award_nomination.award_nominee, Betty White
Betty White, film.actor.film, m.03jsb0j
m.0vs5f21, award.award_nomination.award_nominee, Betty White
Betty White, common.image.size, m.02f1vk4
Betty White, award.award_nominee.award_nominations, m.0911nyb
Betty White, common.topic.image, Betty White
Betty White, common.topic.webpage, m.09ysgvf
m.021_g2x, tv.regular_tv_appearance.actor, Betty White
Betty White, people.person.profession, TV Personality
Betty White, common.topic.webpage, m.094h9n9
Betty White, film.actor.film, m.04ddj96
m.0cg9kyq, film.performance.actor, Betty White
Betty White (1989 cropped), common.image.appears_in_topic_gallery, Betty White
Betty White, tv.tv_actor.starring_roles, m.0l7ktdf
Betty White, people.marriage.spouse, m.021_fzm
Betty White, award.award_nominee.award_nominations, m.0n4mn_g
m.0cgnblw, film.performance.actor, Betty White
Greek American, people.ethnicity.people, Betty White
m.07t6_vw, award.award_nomination.award_nominee, Betty White
m.07shrxf, award.award_honor.award_winner, Betty White
m.02t8nt9, tv.regular_tv_appearance.actor, Betty White
m.0gy8drg, film.performance.actor, Betty White
Betty White, book.author.works_written, The Leading Lady
m.021_g36, tv.regular_tv_appearance.series, The Betty White Show
Betty White, tv.tv_personality.tv_regular_appearances, m.0wczlql
m.05clvln, tv.regular_tv_appearance.actor, Betty White
Betty White, tv.tv_actor.starring_roles, m.05cmmsj
Betty White, film.actor.film, m.0cgnblw
m.0k8645h, award.award_nomination.nominated_for, Betty White's Off Their Rockers
m.0n4mn_g, award.award_nomination.award_nominee, Betty White
Betty White, people.person.profession, Actor
Betty White, common.topic.webpage, m.09yl50t
Betty White, award.award_winner.awards_won, m.0p6g3b0
Betty White, freebase.valuenotation.is_reviewed, Country of nationality
Betty White, award.award_winner.awards_won, m.0gjf66w
m.0bvby4y, award.hall_of_fame_induction.inductee, Betty White
Betty White, common.topic.webpage, m.09yftxj
Betty White, tv.tv_actor.starring_roles, m.05tdnh_
m.0nfjnxh, award.award_nomination.award_nominee, Betty White
Betty White, award.award_nominee.award_nominations, m.0vs5f21
m.09436sl, common.webpage.topic, Betty White
TV Personality, people.person.profession, Allen Ludden
Betty White, award.award_winner.awards_won, m.0nfjnvb
Betty White, tv.tv_actor.starring_roles, m.0h9dlqh
m.0n4mxvx, award.award_nomination.award_nominee, Betty White
Betty White, people.person.parents, Horace Lawrence White
Betty White, book.author.works_written, I lived this story
m.0f_wr92, tv.regular_tv_appearance.series, The Betty White Show
m.0hyc1qh, people.marriage.spouse, Betty White
Betty White, award.award_nominee.award_nominations, m.0z8hlch
Betty White, award.award_winner.awards_won, m.0z9t2kd
Betty White, tv.tv_actor.starring_roles, m.021_g4g
m.0khdvf6, tv.regular_tv_appearance.actor, Betty White
I lived this story, book.written_work.author, Betty White
Betty White, award.award_nominee.award_nominations, m.0j1_40b
Betty White, common.topic.webpage, m.021_g1y
Betty White, freebase.valuenotation.is_reviewed, Gender
Betty White, award.award_nominee.award_nominations, m.0fq7h9t
m.0c5n2xk, tv.regular_tv_appearance.actor, Betty White
Happy Birthday, Betty White!, common.resource.annotations, m.09xzknq
m.03jpmd3, film.performance.actor, Betty White
m.0cg602_, film.performance.actor, Betty White
Betty White, award.award_nominee.award_nominations, m.0whmndw
Betty White, people.person.places_lived, m.0gy8dqr
m.07t757y, award.award_nomination.award_nominee, Betty White
Betty White, tv.tv_actor.starring_roles, m.0jsnr7w
Betty White, film.person_or_entity_appearing_in_film.films, m.0h6c74r
m.0w8lfpz, award.award_nomination.nominated_for, Betty White's Off Their Rockers
m.0vsnqww, award.award_nomination.award_nominee, Betty White
Betty White, freebase.valuenotation.has_no_value, Children
Betty White, people.person.place_of_birth, Oak Park
Betty White, people.person.spouse_s, m.021_fzm
Betty White, common.topic.webpage, m.0940kq0
Betty White, award.award_nominee.award_nominations, m.07t752b
Betty White, book.author.works_written, m.06mg3m3
m.09x69lh, common.webpage.resource, Sandra Bullock to present SAG lifetime achievement award to Betty White
Betty White, freebase.valuenotation.is_reviewed, Date of birth
m.0vp6hm5, people.marriage.spouse, Tess Curtis White
m.0cs5y6_, film.performance.actor, Betty White
m.08nbz0h, film.performance.actor, Betty White
Betty White, award.award_nominee.award_nominations, m.07shtnj
m.0vp6hm5, people.marriage.spouse, Horace Lawrence White
Betty White's Off Their Rockers, tv.tv_program.languages, English Language
m.0pdkb84, tv.regular_tv_appearance.actor, Betty White
m.03pqbw0, people.place_lived.person, Betty White
Betty White, film.person_or_entity_appearing_in_film.films, m.0ngw99w
m.0myx97j, award.award_nomination.award_nominee, Betty White
Betty White, tv.tv_actor.starring_roles, m.09hz9d6
m.0h9dtkz, tv.regular_tv_appearance.actor, Betty White
Betty White, common.topic.webpage, m.09wvh7v
m.065rkth, film.performance.actor, Betty White
m.0k8645h, award.award_nomination.award_nominee, Betty White
m.0vtzpty, film.personal_film_appearance.person, Betty White
Marriage, people.marriage.type_of_union, m.021_fzm
Betty White, film.actor.film, m.0cg1qlh
The Betty White Show, tv.tv_program.regular_cast, m.021_g36
Betty White, common.topic.webpage, m.09xzknq
Betty White (1989 cropped), common.image.size, m.03rm0jp
m.052dlhx, film.performance.actor, Betty White
m.0gy8dqr, people.place_lived.person, Betty White
m.0911nsk, award.award_nomination.award_nominee, Betty White
Betty White, film.actor.dubbing_performances, m.0nfkhhh
Betty White, award.award_nominee.award_nominations, m.0z9t2yb
Betty White, award.award_nominee.award_nominations, m.0hnjl5g
m.040k5xs, tv.regular_tv_appearance.actor, Betty White
Betty White, film.actor.film, m.0dgl2y6
m.0vp6gy_, film.performance.actor, Betty White
Betty White, people.person.gender, Female
m.021_g1y, common.webpage.topic, Betty White
Betty White, award.award_nominee.award_nominations, m.0r9jh54
m.05cmmsj, tv.regular_tv_appearance.actor, Betty White
m.0wczlql, tv.tv_regular_personal_appearance.program, Betty White's Off Their Rockers
m.07t78pm, award.award_honor.award_winner, Betty White
m.0d0xjk6, education.education.student, Betty White
m.09yftxj, common.webpage.resource, Clip du Jour: Ryan Reynolds vs. Betty White
Betty White, tv.tv_personality.tv_regular_appearances, m.0nfjp5b
Betty White, award.award_nominee.award_nominations, m.07shth4
Betty White, award.award_nominee.award_nominations, m.07t75hk
m.0f_yc52, tv.regular_tv_appearance.actor, Betty White
Betty, symbols.namesake.named_after, Betty White
Betty White, people.person.profession, Singer
m.0mz3mxh, award.award_nomination.award_nominee, Betty White
m.094jyc8, common.webpage.topic, Betty White
Betty White, people.person.profession, Voice Actor
m.07shtj7, award.award_nomination.award_nominee, Betty White
m.021_fzm, people.marriage.spouse, Betty White
Betty White, award.award_nominee.award_nominations, m.07t757y
m.09ylkmz, common.webpage.topic, Betty White
Betty White, film.actor.film, m.0djbgm7
m.0f_wr92, tv.regular_tv_appearance.actor, Betty White
Betty White, book.author.works_written, Walk in the Light of Darkness
Betty White, film.actor.film, g.11b6v7_n_6
m.021_g36, tv.regular_tv_appearance.actor, Betty White
Betty White, base.schemastaging.person_extra.net_worth, m.0j8mjv5
Betty White, people.person.places_lived, m.03pqbw0
m.0z9t2kd, award.award_honor.award_winner, Betty White
Betty White, people.person.profession, Presenter
m.07shtl1, award.award_nomination.award_nominee, Betty White
Betty White, tv.tv_actor.starring_roles, m.05clvln
Betty White, award.award_winner.awards_won, m.07shrxf
m.093_zl1, common.webpage.topic, Betty White
m.09yftxj, common.webpage.topic, Betty White
Betty White, award.award_nominee.award_nominations, m.07t75gg
Actor, people.person.profession, Allen Ludden
Betty White, tv.tv_personality.tv_regular_appearances, m.0zmt6kx
Betty White, common.topic.webpage, m.09ylkmz
Betty White, tv.tv_actor.starring_roles, m.0h9dtkz
Presenter, people.person.profession, Allen Ludden
Here We Go Again, book.written_work.author, Betty White
m.0hnjgj_, tv.regular_tv_appearance.actor, Betty White
Betty White, film.actor.film, m.0cg602_
If You Ask Me (And of Course You Won't), book.written_work.author, Betty White
Betty White, tv.tv_actor.starring_roles, m.0dfgk5j
Betty White, common.topic.webpage, m.09436sl
Betty White, common.topic.image, Betty White (1989 cropped)
Betty White, award.award_nominee.award_nominations, m.0h8p9_l
Betty White, film.actor.film, m.0gy8drg
Betty White, book.author.works_written, Dancing Made Easy
m.05tdnh_, tv.regular_tv_appearance.actor, Betty White
Betty White, award.award_winner.awards_won, m.0p82f_x
Betty White, tv.tv_actor.starring_roles, m.03lpfgc
m.0gy8dq8, education.education.student, Betty White
Betty White, award.award_nominee.award_nominations, m.0911nsk
Betty White's Off Their Rockers, tv.tv_program.regular_personal_appearances, m.0wczlql
m.01140gjb, award.award_nomination.nominated_for, Betty White's Off Their Rockers
m.03lbz90, film.performance.actor, Betty White
Betty White, people.person.ethnicity, Welsh American
m.0j9tc_d, tv.regular_tv_appearance.actor, Betty White
m.03jtgw1, tv.regular_tv_appearance.actor, Betty White
m.0zmt6kx, tv.tv_regular_personal_appearance.person, Betty White
Betty White, tv.tv_actor.starring_roles, m.0f_yc52
m.0fq7h9t, award.award_nomination.award_nominee, Betty White
m.0p6g3b0, award.award_honor.award_winner, Betty White
Betty White, common.topic.webpage, m.0bns8py
m.07t75hk, award.award_nomination.award_nominee, Betty White
Betty White, award.award_winner.awards_won, m.0p6djrw
Betty White, film.actor.film, m.0cs5y6_
Betty White, tv.tv_actor.starring_roles, m.03jtc1k
m.0gjf66w, award.award_honor.award_winner, Betty White
m.0p6djrw, award.award_honor.award_winner, Betty White
Betty White's Off Their Rockers, tv.tv_program.country_of_origin, United States of America
Betty White, award.award_nominee.award_nominations, m.07twrbj
Betty White, people.person.ethnicity, Greek American
Betty White, award.award_winner.awards_won, m.0z85fz7
m.07shtmd, award.award_nomination.award_nominee, Betty White
m.0940kq0, common.webpage.topic, Betty White
m.0whmndw, award.award_nomination.award_nominee, Betty White
Betty White, film.actor.film, m.0cg8xhx
Betty White, people.person.ethnicity, German American
Betty White, book.author.works_written, If You Ask Me (And of Course You Won't)
m.0c02qkv, award.award_nomination.award_nominee, Betty White
m.0911nyb, award.award_nomination.award_nominee, Betty White
Betty White, people.person.spouse_s, m.0gy8dpv
Betty White, people.person.ethnicity, Danish American
m.0h6c74r, film.personal_film_appearance.person, Betty White
m.0h9dlqh, tv.regular_tv_appearance.actor, Betty White
Betty White, common.topic.webpage, m.09ypbwp
m.0ngw99w, film.personal_film_appearance.person, Betty White
Betty White, award.award_nominee.award_nominations, m.0vsnqww
m.09ysgvf, common.webpage.topic, Betty White
m.09hz9d6, tv.regular_tv_appearance.actor, Betty White
m.09yl50t, common.webpage.topic, Betty White
Betty White, film.actor.film, m.04ddj45
Betty White, common.topic.webpage, m.09yrq05
Betty White, people.person.spouse_s, m.0hyc1qh
Betty White, award.award_winner.awards_won, m.0whmnb6
Betty White, award.award_nominee.award_nominations, m.07shtl1
Betty White's Off Their Rockers, tv.tv_program.genre, Reality television
m.0nfkhhh, film.dubbing_performance.actor, Betty White
m.09wvh7v, common.webpage.topic, Betty White
m.09ypbwp, common.webpage.topic, Betty White
m.07smpyp, tv.regular_tv_appearance.actor, Betty White
m.0whx753, people.place_lived.person, Betty White
Betty White, film.actor.film, m.03jpmd3
m.03jsb0j, film.performance.actor, Betty White
Betty White, award.award_winner.awards_won, m.0j1tmvf
m.03jtc1k, tv.regular_tv_appearance.actor, Betty White
Betty White, award.award_winner.awards_won, m.0z998g4
Betty White, film.actor.film, m.0cg9kyq
m.02vd0pj, film.performance.actor, Betty White
Betty White, symbols.name_source.namesakes, Betty
m.04ddj96, film.performance.actor, Betty White
m.07twrbj, award.award_nomination.award_nominee, Betty White
Betty White, common.topic.article, m.025mc6
Betty White, tv.tv_actor.starring_roles, m.0khdvf6
m.0nfjp5b, tv.tv_regular_personal_appearance.person, Betty White
Betty White, tv.tv_actor.starring_roles, m.021_g2x
m.0cg1qlh, film.performance.actor, Betty White
Betty White, people.person.nationality, United States of America
m.0whmnb6, award.award_honor.award_winner, Betty White
Betty White, people.person.religion, Unity Church
Betty White, award.award_nominee.award_nominations, m.0w8lfpz
m.0w8lfpz, award.award_nomination.award_nominee, Betty White
m.04ddj45, film.performance.actor, Betty White
The Betty White Show, tv.tv_program.country_of_origin, United States of America
Horace Lawrence White, people.person.spouse_s, m.0vp6hm5
Betty White, award.award_nominee.award_nominations, m.0ndsg20
Betty White, tv.tv_actor.starring_roles, m.0kh0ms_
Betty White, common.topic.webpage, m.093_zl1
The Betty White Show, tv.tv_program.regular_cast, m.0f_wr92
m.0djbgm7, film.performance.actor, Betty White
Betty White, music.artist.track, Let It Grow
m.07t752b, award.award_nomination.award_nominee, Betty White
m.0kh0ms_, tv.regular_tv_appearance.actor, Betty White
m.0j1_40b, award.award_nomination.award_nominee, Betty White
m.09x69lh, common.webpage.topic, Betty White
Betty White, tv.tv_actor.starring_roles, m.0c5n2xk
Betty White, book.author.works_written, Here We Go Again
Tess Curtis White, people.person.children, Betty White
Welsh American, people.ethnicity.people, Betty White
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Answer: Allen Ludden