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 candidate for Vice President in 2012 once held the title of the Associate Director, White House Office of Public Liaison? 
Knowledge Triplets: Joe Biden, people.person.height_meters, 1.83
Joe Biden, people.person.education, g.11b8cfq9yc
Newsweek, base.yupgrade.user.topics, Joe Biden
Joe Biden, film.person_or_entity_appearing_in_film.films, m.0pb_gp2
Joe Biden, people.person.ethnicity, Irish American
Joe Biden, user.avh.default_domain.ellerdale_topic.ellerdale_id, 009a-5f30
Joe Biden, people.person.education, m.03l4lnx
Joe Biden, people.person.education, m.03l4lnr
Joe Biden, base.politicalconventions.vice_presidential_nominee.convention_nominated_at, 2008 Democratic National Convention
Ana Marie Cox, base.yupgrade.user.topics, Joe Biden
Government Office or Title, freebase.type_profile.strict_included_types, Abstract
m.0fpwg82, base.popstra.restaurant_choice.diner, Joe Biden
m.05pv1bq, government.government_position_held.office_position_or_title, Associate Director, White House Office of Public Liaison
Joe Biden, people.person.religion, Catholicism
Joe Biden, book.author.works_written, Promises to keep
m.0g9krt9, royalty.chivalric_order_membership.recipient, Joe Biden
m.03l4lnr, education.education.student, Joe Biden
Associate Director, White House Office of Public Liaison, government.government_office_or_title.office_holders, m.05pv1bq
Joe Biden, people.person.spouse_s, m.04hzwly
Government Office or Title, type.type.properties, Category
m.06h_8hr, base.yupgrade.user.topics, Joe Biden
Joe Biden, book.author.works_written, International Campaign Against Terrorism
Joe Biden, book.author.openlibrary_id, OL3506380A
International Campaign Against Terrorism, book.written_work.author, Joe Biden
White House Situation Room during Operation Neptune's Spear, visual_art.artwork.art_subject, Joe Biden
Joseph R. Biden Sr., people.person.children, Joe Biden
Joe Biden, people.person.children, Ashley Biden
m.09vj0kh, base.yupgrade.user.topics, Joe Biden
Joe Biden vice-presidential campaign, 2008, government.election_campaign.candidate, Joe Biden
Joe Biden, people.person.profession, Lawyer
Joe Biden, people.person.employment_history, m.052n2bt
Anderson Cooper, base.yupgrade.user.topics, Joe Biden
United States Senate election in Delaware, 2008, government.election.winner, Joe Biden
Joe Biden, government.politician.government_positions_held, m.04hzwqx
Joe Biden, business.board_member.leader_of, m.011s5qnh
m.09vj0j7, base.yupgrade.user.topics, Joe Biden
m.0pb_gp2, film.personal_film_appearance.person, Joe Biden
United States vice-presidential debate, 2008, base.culturalevent.event.entity_involved, Joe Biden
Joe Biden, imdb.topic.name_id, nm0081182
Joe Biden, government.politician.election_campaigns, Joe Biden vice-presidential campaign, 2008
Joe Biden, fictional_universe.fictional_character.based_on, Joe Biden
Joe Biden, people.person.profession, Politician
m.05pv1bq, government.government_position_held.governmental_body, Executive Office of the President of the United States
Joe Biden, government.politician.legislative_committees_served_on, m.02_x99k
Joe Biden, people.person.places_lived, m.04hzwhy
Joe Biden, people.person.sibling_s, m.04hzwh1
m.0fpl74d, people.place_lived.person, Joe Biden
Joe Biden, people.person.places_lived, m.03pq2qc
Joe Biden, government.u_s_congressperson.thomas_id, B000444
Government Office or Title, type.type.properties, Governmental body (if any)
Government Office or Title, type.type.expected_by, Title of Chief Executive
United States presidential election debates, 2012, time.event.people_involved, Joe Biden
Joe Biden, government.politician.legislative_committees_served_on, m.02_x991
m.052n2bt, business.employment_tenure.person, Joe Biden
m.05x23d5, dataworld.gardening_hint.replaced_by, Joe Biden
Office, position, or title, type.property.expected_type, Government Office or Title
m.04s_v0l, government.government_position_held.office_holder, Joe Biden
Joe Biden, government.political_appointer.appointees, m.0527kzw
Joe Biden, people.person.date_of_birth, 1942-11-20
Joe Biden, organization.organization_founder.organizations_founded, Biden and Walsh
Joe Biden, sports.pro_athlete.sports_played_professionally, m.0d6m0bj
m.02_x98d, government.political_party_tenure.politician, Joe Biden
Joe Biden, people.person.sibling_s, m.04hzwhc
Joe Biden, government.politician.election_campaigns, Joe Biden presidential campaign, 2008
m.09sq8_9, base.yupgrade.user.topics, Joe Biden
m.02_x98m, government.government_position_held.office_holder, Joe Biden
Joe Biden, american_football.football_player.position_s, Defensive back
2008 Democratic National Convention, base.politicalconventions.political_convention.vice_presidential_nominee, Joe Biden
Politician, people.profession.people_with_this_profession, Joe Biden
White people, people.ethnicity.people, Joe Biden
Associate Director, White House Office of Public Liaison, government.government_office_or_title.office_holders, m.05pv1bq
Joe Biden, people.person.gender, Male
Joe Biden, royalty.chivalric_order_member.belongs_to_order, m.0g9krt9
Putin Administration's Policies Toward Non-Russian Regions of the Russian Federation, book.written_work.author, Joe Biden
Joe Biden, celebrities.celebrity.celebrity_rivals, m.04wkvd9
m.04hzwkj, education.education.student, Joe Biden
Joe Biden, american_football.football_player.position_s, Halfback
Government Office or Title, freebase.type_profile.kind, Definition
Government Office or Title, type.type.expected_by, Office
Joe Biden, book.author.works_written, Putin Administration's Policies Toward Non-Russian Regions of the Russian Federation
Catherine Eugenia Finnegan, people.person.children, Joe Biden
Government Office or Title, type.type.expected_by, Office, position, or title
Government Office or Title, freebase.type_profile.strict_included_types, Topic
m.05pv1bq, government.government_position_held.office_holder, Kal Penn
Barack Obama, government.us_president.vice_president, Joe Biden
Strategies for Homeland Defense, book.written_work.author, Joe Biden
g.11b8cfq9yc, education.education.student, Joe Biden
Joe Biden, people.person.children, Naomi Biden
Joe Biden, people.person.parents, Joseph R. Biden Sr.
m.09vj0k5, base.yupgrade.user.topics, Joe Biden
m.04hzwly, people.marriage.spouse, Joe Biden
m.0qm9j83, dataworld.gardening_hint.last_referenced_by, Joe Biden
m.03l4lnx, education.education.student, Joe Biden
GeorgeStephanopoulos, base.yupgrade.user.topics, Joe Biden
Government Office or Title, type.type.expected_by, Office, Position, or Title
Beau Biden, people.person.parents, Joe Biden
Joe Biden, people.person.places_lived, m.0fpl74d
m.02_x991, government.legislative_committee_membership.member, Joe Biden
m.09sq912, base.yupgrade.user.topics, Joe Biden
Executive Office of the President of the United States, government.governmental_body.members, m.05pv1bq
m.0d6m0bj, sports.pro_sports_played.athlete, Joe Biden
Joe Biden, people.person.place_of_birth, Scranton
Naomi Biden, people.person.parents, Joe Biden
Government Office or Title, type.type.domain, Government
Joe Biden, government.politician.government_positions_held, m.02_x98m
Joe Biden, royalty.chivalric_order_member.belongs_to_order, m.0g9krw1
Ashley Biden, people.person.parents, Joe Biden
Joe Biden, base.popstra.celebrity.eats_at, m.0fpwg82
Government Office or Title, freebase.type_profile.strict_included_types, Non-Agent
Government Office or Title, type.type.expected_by, Government positions
Joe Biden, people.person.children, Beau Biden
Political Future of Afghanistan, book.written_work.author, Joe Biden
Joe Biden, film.person_or_entity_appearing_in_film.films, m.011sx3x0
Joe Biden, fictional_universe.person_in_fiction.representations_in_fiction, Joe Biden
m.011sx3x0, film.personal_film_appearance.person, Joe Biden
Joe Biden, people.person.places_lived, m.03pr98t
Scranton, location.location.people_born_here, Joe Biden
Kal Penn, government.politician.government_positions_held, m.05pv1bq
Government Office or Title, freebase.type_hints.included_types, Topic
m.03pq2qc, people.place_lived.person, Joe Biden
m.04hzwhy, people.place_lived.person, Joe Biden
Government Office or Title, common.topic.article, m.02xlj1v
Office, position, or title, owl#inverseOf, Office Holders
m.04hzwgr, people.sibling_relationship.sibling, Joe Biden
m.052n2bm, business.employment_tenure.person, Joe Biden
Joe Biden, people.person.parents, Catherine Eugenia Finnegan
m.04wkvd9, celebrities.rivalry.rival, Joe Biden
Joe Biden, visual_art.art_subject.artwork_on_the_subject, White House Situation Room during Operation Neptune's Spear
m.04hzwhc, people.sibling_relationship.sibling, Joe Biden
Government Office or Title, type.type.expected_by, Offices
Government Office or Title, type.type.expected_by, Offices/Positions Within the Body
m.075_7tf, base.yupgrade.user.topics, Joe Biden
m.0hpnx72, sports.sports_team_roster.player, Joe Biden
Hunter Biden, people.person.parents, Joe Biden
m.05pv1bq, government.government_position_held.appointed_by, Barack Obama
m.0g9krw1, royalty.chivalric_order_membership.recipient, Joe Biden
m.05v4mjh, event.speech_or_presentation.speaker_s, Joe Biden
m.07y524n, base.yupgrade.user.topics, Joe Biden
Joe Biden presidential campaign, 1988, government.election_campaign.candidate, Joe Biden
Lawyer, people.profession.people_with_this_profession, Joe Biden
Joe Biden, people.person.children, Hunter Biden
Promises to keep, book.written_work.author, Joe Biden
Joe Biden, base.propositions.proposition_issue.against, California Proposition 8
m.07y4vlv, base.yupgrade.user.topics, Joe Biden
m.04j00l_, base.politicalconventions.convention_speech.speaker, Joe Biden
Biden and Walsh, organization.organization.founders, Joe Biden
Joe Biden, event.public_speaker.speeches_or_presentations, m.05v4mjh
Joe Biden vice-presidential campaign, 2012, government.election_campaign.candidate, Joe Biden
Joe Biden, book.author.works_written, Strategies for Homeland Defense
Joe Biden, base.obamabase.cabinet_member.cabinet_position, Vice President of the United States
Joe Biden, nytimes.topic.uri, top$002Freference$002Ftimestopics$002Fpeople$002Fb$002Fjoseph_r_jr_biden
Government Office or Title, freebase.type_profile.published, Published
Associate Director, White House Office of Public Liaison, common.topic.notable_for, g.1257q_x3j
m.05pv1bq, government.political_appointer.appointees, Barack Obama
m.0527kzw, government.government_position_held.appointed_by, Joe Biden
m.0n1pgvw, film.personal_film_appearance.person, Joe Biden
PERSON TYPE, community.discussion_thread.topic, Joe Biden
m.07v_4y4, base.yupgrade.user.topics, Joe Biden
Joe Biden, people.person.education, m.04hzwkj
m.02_x99k, government.legislative_committee_membership.member, Joe Biden
Joe Biden, sports.pro_athlete.teams, m.0hpnx72
m.011s5qnh, organization.leadership.person, Joe Biden
Joe Biden, user.robert.default_domain.daylife.hero_image_id, 05Ic4qp7KV80M
m.09vj0kt, base.yupgrade.user.topics, Joe Biden
Barack Obama, government.us_president.vice_president, Joe Biden
Government Office or Title, type.type.properties, Office Holders
m.04hzwqx, government.government_position_held.office_holder, Joe Biden
Irish American, people.ethnicity.people, Joe Biden
Joe Biden, film.person_or_entity_appearing_in_film.films, m.0wzhzlx
Joe Biden, government.politician.legislative_committees_served_on, m.02_x99b
Associate Director, White House Office of Public Liaison, common.topic.notable_types, Government Office or Title
Joe Biden, people.person.spouse_s, m.04hzwmt
m.03pr98t, people.place_lived.person, Joe Biden
Joe Biden, government.politician.election_campaigns, Joe Biden vice-presidential campaign, 2012
Office, position, or title, rdf-schema#range, Government Office or Title
California Proposition 8, base.propositions.proposition.against, Joe Biden
m.04hzwmt, people.marriage.spouse, Joe Biden
Joe Biden, government.us_vice_president.vice_president_number, 47
m.02_x99b, government.legislative_committee_membership.member, Joe Biden
Joe Biden, government.politician.election_campaigns, Joe Biden presidential campaign, 1988
Barack Obama 2009 presidential inauguration, base.culturalevent.event.entity_involved, Joe Biden
Joe Biden, people.person.nationality, United States of America
m.04hzwh1, people.sibling_relationship.sibling, Joe Biden
m.09vj0jk, base.yupgrade.user.topics, Joe Biden
Good Morning America, base.yupgrade.user.topics, Joe Biden
Joe Biden, government.us_vice_president.to_president, Barack Obama
Joe Biden, book.author.works_written, Political Future of Afghanistan
m.0wzhzlx, film.personal_film_appearance.person, Joe Biden
Joe Biden, american_football.football_player.position_s, Wide receiver
m.0vpdd2g, film.personal_film_appearance.person, Joe Biden
Joe Biden, government.politician.government_positions_held, m.04s_v0l
Joe Biden, people.person.employment_history, m.052n2bm
Government Office or Title, type.type.properties, Jurisdiction
Joe Biden, base.obamabase.cabinet_member.date_selected, 2008-08-23
Topic, freebase.type_profile.published, Published
Joe Biden, government.politician.party, m.02_x98d
Joe Biden presidential campaign, 2008, government.election_campaign.candidate, Joe Biden
Joe Biden, people.person.sibling_s, m.04hzwgr
Joe Biden, base.politicalconventions.convention_speaker.conventions_spoken_at, m.04j00l_
Joe Biden, film.person_or_entity_appearing_in_film.films, m.0n1pgvw
Barack Obama, government.political_appointer.appointees, m.05pv1bq
Joe Biden, people.person.ethnicity, White people
Joe Biden, film.person_or_entity_appearing_in_film.films, m.0vpdd2g
Office, position, or title, type.property.reverse_property, Office Holders

Answer: Joe Biden