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: The team that won the 1957 NBA Finals championship won their first championship in what year? 
Knowledge Triplets: The NBA Finals, sports.sports_championship.events, 2012 NBA Finals
m.0_qwylx, award.award_honor.award_winner, Boston Celtics
1957 NBA Finals, common.topic.article, m.0cs2n5
1986 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Boston Celtics, award.award_winner.awards_won, m.0_qwy6n
Boston Celtics, award.award_winner.awards_won, m.0_qxqdw
1980 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 5
The NBA Finals, sports.sports_championship.events, 1975 NBA Finals
The NBA Finals, sports.sports_championship.events, 1997 NBA Finals
The NBA Finals, sports.sports_championship.events, 1985 NBA Finals
The NBA Finals, common.topic.webpage, m.09w74wk
1949 BAA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qwyjd
1990 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1950 NBA Finals
Boston Celtics, sports.sports_team.championships, 1984 NBA Finals
The NBA Finals, sports.sports_championship.events, 1965 NBA Finals
1956–57 NBA season, common.topic.article, m.09ndwk
The NBA Finals, sports.sports_championship.events, 1980 NBA Finals
NBA Finals, tv.tv_program.subjects, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1953 NBA Finals
The NBA Finals, sports.sports_championship.events, 1977 NBA Finals
Boston Celtics, sports.sports_team.championships, 1965 NBA Finals
m.0gcl47r, film.personal_film_appearance.person, Boston Celtics
1999 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, common.topic.webpage, m.09wdc12
The NBA Finals, sports.sports_championship.events, 1989 NBA Finals
2010 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1947 BAA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qxtb9
1958 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0k8hh28, sports.sports_team_roster.team, Boston Celtics
1972 NBA Finals, common.topic.notable_types, Sports League Championship Event
1993 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
2002 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 2014 NBA Finals
m.0w7dhrf, sports.sports_team_roster.team, Boston Celtics
m.0b4992q, common.webpage.topic, The NBA Finals
2008 NBA Finals, common.topic.notable_types, Sports League Championship Event
2000 NBA Finals, common.topic.notable_types, Sports League Championship Event
1988 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 2007 NBA Finals
Boston Celtics, sports.sports_team.championships, 1959 NBA Finals
The NBA Finals, sports.sports_championship.events, 1958 NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 7
1998 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1957 NBA Finals
2003 NBA Finals, common.topic.notable_types, Sports League Championship Event
1965 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
2009 NBA Finals, common.topic.notable_types, Sports League Championship Event
1971 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1989 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0z4tlyt, sports.sports_team_roster.team, Boston Celtics
1958 NBA Finals, sports.sports_championship_event.runner_up, Boston Celtics
1985 NBA Finals, common.topic.notable_types, Sports League Championship Event
1956 NBA Finals, common.topic.notable_types, Sports League Championship Event
1992 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0_qwx1_, award.award_honor.award_winner, Boston Celtics
1950 NBA Finals, common.topic.notable_types, Sports League Championship Event
1948 BAA Finals, sports.sports_championship_event.championship, The NBA Finals
Basketball Team, freebase.type_profile.published, Published
1957 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Boston Celtics, sports.sports_team.championships, 1962 NBA Finals
2014 NBA Finals, freebase.valuenotation.is_reviewed, Result
m.0_qwykr, award.award_honor.award_winner, Boston Celtics
m.09w74wk, common.webpage.topic, The NBA Finals
2012 NBA Finals, time.event.instance_of_recurring_event, The NBA Finals
1967 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
2013 NBA Finals, time.event.instance_of_recurring_event, The NBA Finals
m.0j2dtly, sports.sports_team_roster.team, Boston Celtics
1994 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.02kbc1x, sports.sports_award.team, Boston Celtics
1987 NBA Finals, sports.sports_championship_event.runner_up, Boston Celtics
2004 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0j2dtlm, sports.sports_team_roster.team, Boston Celtics
m.0yx5c6w, award.award_nomination.award_nominee, Boston Celtics
1954 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1959 NBA Finals
1999 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, freebase.valuenotation.is_reviewed, Current frequency
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 6
2014 NBA Finals, time.event.instance_of_recurring_event, The NBA Finals
1992 NBA Finals, common.topic.notable_types, Sports League Championship Event
2010 NBA Finals, common.topic.notable_types, Sports League Championship Event
1959 NBA Finals, common.topic.notable_types, Sports League Championship Event
1998 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1962 NBA Finals, common.topic.notable_types, Sports League Championship Event
1953 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1988 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1993 NBA Finals
The NBA Finals, sports.sports_championship.events, 1999 NBA Finals
1975 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0j2dtmd, sports.sports_team_roster.team, Boston Celtics
m.04ynxxy, sports.sports_award.season, 1956–57 NBA season
m.02kbc1x, sports.sports_award.season, 1956–57 NBA season
m.0_qwyjd, award.award_honor.award_winner, Boston Celtics
2014 NBA Finals, freebase.valuenotation.is_reviewed, Season
The NBA Finals, sports.sports_championship.events, 2001 NBA Finals
1956–57 NBA season, common.topic.notable_types, Sports League Season
2007 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0_qwy6n, award.award_honor.award_winner, Boston Celtics
1995 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, award.award_winner.awards_won, m.0_qwx1_
m.0_qxt5p, award.award_honor.award_winner, Boston Celtics
1987 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1966 NBA Finals, common.topic.notable_types, Sports League Championship Event
1991 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 6
Boston Celtics, basketball.basketball_team.previous_coaches, m.0w2j6hy
m.04228m4, common.webpage.topic, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1968 NBA Finals
m.09wzs_4, common.webpage.topic, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1966 NBA Finals
1976 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 2009 NBA Finals
1987 NBA Finals, common.topic.notable_types, Sports League Championship Event
1969 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
The NBA Finals, sports.sports_championship.events, 2013 NBA Finals
m.09wddf9, common.webpage.topic, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1983 NBA Finals
Boston Celtics, sports.sports_team.championships, 1961 NBA Finals
1979 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1970 NBA Finals
1955 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0ndtw33, sports.sports_team_roster.team, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1960 NBA Finals
1960 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1952 NBA Finals
m.0_qxt49, award.award_honor.award_winner, Boston Celtics
Boston Celtics, award.award_winner.awards_won, m.0_qxt5p
1984 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1948 BAA Finals
2012 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0_qrm59, award.award_honor.award_winner, Boston Celtics
2009 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0z43hm7, award.award_nomination.award_nominee, Boston Celtics
m.09wdcm7, common.webpage.topic, The NBA Finals
1968 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 3
1951 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1969 NBA Finals
1963 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Boston Celtics, award.award_winner.awards_won, m.0_qwykr
The NBA Finals, sports.sports_championship.events, 1949 BAA Finals
The NBA Finals, sports.sports_championship.events, 2005 NBA Finals
1980 NBA Finals, common.topic.notable_types, Sports League Championship Event
2008 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Boston Celtics, sports.sports_team.championships, 2008 NBA Finals
1955 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1990 NBA Finals
The NBA Finals, sports.sports_championship.events, 1973 NBA Finals
2001 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1954 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1992 NBA Finals
Boston Celtics, sports.sports_team.sport, Basketball
The NBA Finals, base.popstra.business_location.customer, m.064wg_z
Basketball, sports.sport.team_coaches, Brad Stevens
Boston Celtics, basketball.basketball_team.head_coach, Brad Stevens
m.0z43nms, award.award_nomination.award_nominee, Boston Celtics
1974 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1991 NBA Finals
The NBA Finals, sports.sports_championship.events, 1963 NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 5
1957 NBA Finals, common.topic.notable_types, Sports League Championship Event
1983 NBA Finals, common.topic.notable_types, Sports League Championship Event
Atlanta Hawks, basketball.basketball_team.conference, Eastern Conference
1960 NBA Finals, sports.sports_championship_event.runner_up, St. Louis Hawks
m.02kbc88, sports.sports_award.season, 1956–57 NBA season
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 1
1952 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1956–57 NBA season, sports.sports_league_season.championship, 1957 NBA Finals
1983 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.championships, 1960 NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 2
m.05hy04s, sports.sports_team_roster.team, Boston Celtics
1996 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
2001 NBA Finals, common.topic.notable_types, Sports League Championship Event
2014 NBA Finals, freebase.valuenotation.is_reviewed, Champion
Boston Celtics, award.award_winner.awards_won, m.0_qwmq0
2014 NBA Finals, freebase.valuenotation.is_reviewed, Championship
The NBA Finals, sports.sports_championship.events, 1964 NBA Finals
The NBA Finals, sports.sports_championship.events, 2004 NBA Finals
2004 NBA Finals, common.topic.notable_types, Sports League Championship Event
1994 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1978 NBA Finals
1993 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0w2j6hy, basketball.basketball_historical_coach_position.team, Boston Celtics
1967 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, common.topic.article, m.03m5xb
1974 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1986 NBA Finals
The NBA Finals, sports.sports_championship.events, 1979 NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 4
1972 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1973 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1991 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0r5drlp, sports.sports_team_roster.team, Boston Celtics
1970 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, freebase.valuenotation.is_reviewed, Date of first occurrence
1953 NBA Finals, common.topic.notable_types, Sports League Championship Event
2000 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qwy8c
The NBA Finals, common.topic.notable_types, Sports League Championship
The NBA Finals, sports.sports_championship.events, 1996 NBA Finals
The NBA Finals, time.recurring_event.instances, 2014 NBA Finals
Boston Celtics, basketball.basketball_team.conference, Eastern Conference
1966 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
2011 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1975 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1966 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1965 NBA Finals, common.topic.notable_types, Sports League Championship Event
1962 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qxt8j
The NBA Finals, sports.sports_championship.events, 2011 NBA Finals
The NBA Finals, sports.sports_championship.events, 1982 NBA Finals
1956–57 NBA season, sports.sports_league_season.awards, m.02kbcm_
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 2
Boston Celtics, sports.sports_team.championships, 1974 NBA Finals
1997 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, sports.sports_team.championships, 1986 NBA Finals
The NBA Finals, sports.sports_championship.events, 1972 NBA Finals
m.02396wx, sports.sports_team_roster.team, Boston Celtics
1965 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1996 NBA Finals, common.topic.notable_types, Sports League Championship Event
2013 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0_qxqdw, award.award_honor.award_winner, Boston Celtics
m.0_qwy8c, award.award_honor.award_winner, Boston Celtics
The NBA Finals, freebase.valuenotation.has_no_value, Date of final occurrence
National Basketball Association, sports.sports_league.championship, The NBA Finals
1957 NBA Finals, common.topic.notable_for, g.125906rkn
The NBA Finals, sports.sports_championship.events, 1976 NBA Finals
2007 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0_qwpgd, award.award_honor.award_winner, Boston Celtics
1976 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1981 NBA Finals
1985 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, common.topic.notable_for, g.1254y3jh4
Boston Celtics, award.award_winner.awards_won, m.0_qrm59
2006 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1984 NBA Finals
The NBA Finals, sports.sports_championship.events, 2000 NBA Finals
The NBA Finals, sports.sports_championship.events, 2008 NBA Finals
The NBA Finals, sports.sports_championship.events, 1962 NBA Finals
The NBA Finals, sports.sports_championship.events, 2010 NBA Finals
The NBA Finals, sports.sports_championship.events, 1994 NBA Finals
2006 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0_qxt8j, award.award_honor.award_winner, Boston Celtics
The NBA Finals, time.recurring_event.instances, 2011 NBA Finals
m.0qzlbgy, sports.sports_team_roster.team, Boston Celtics
Boston Celtics, tv.tv_subject.tv_programs, NBA Finals
m.09wdc12, common.webpage.topic, The NBA Finals
1978 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, award.award_winner.awards_won, m.0_qxt92
1957 NBA Finals, sports.sports_championship_event.runner_up, St. Louis Hawks
The NBA Finals, sports.sports_championship.events, 2002 NBA Finals
Boston Celtics, sports.sports_team.championships, 1976 NBA Finals
1984 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1986 NBA Finals, common.topic.notable_types, Sports League Championship Event
1979 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.064wg_z, base.popstra.hangout.business_location, The NBA Finals
1964 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1995 NBA Finals
2014 NBA Finals, common.topic.notable_types, Sports League Championship Event
1971 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, award.award_winner.awards_won, m.0_qxt_d
1974 NBA Finals, common.topic.notable_types, Sports League Championship Event
2003 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1987 NBA Finals
Boston Celtics, sports.sports_team.championships, 1963 NBA Finals
The NBA Finals, sports.sports_championship.events, 2003 NBA Finals
1961 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1959 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Brad Stevens, basketball.basketball_coach.team, Boston Celtics
1961 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1973 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, common.topic.article, m.0bwjv
2012 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, time.recurring_event.current_frequency, Yearly
The NBA Finals, sports.sports_championship.league, National Basketball Association
The NBA Finals, sports.sports_championship.events, 1967 NBA Finals
m.0_qxtb9, award.award_honor.award_winner, Boston Celtics
m.0j2dtls, sports.sports_team_roster.team, Boston Celtics
Boston Celtics, award.award_winner.awards_won, m.0_qwylx
1969 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1956 NBA Finals
1977 NBA Finals, common.topic.notable_types, Sports League Championship Event
1960 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1985 NBA Finals, sports.sports_championship_event.runner_up, Boston Celtics
1957 NBA Finals, sports.sports_championship_event.season, 1956–57 NBA season
1963 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.09wytr4, common.webpage.topic, The NBA Finals
1958 NBA Finals, sports.sports_championship_event.champion, Atlanta Hawks
m.02397wj, sports.sports_team_roster.team, Boston Celtics
1970 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1952 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, award.award_winner.awards_won, m.0_qwxb8
1977 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, time.recurring_event.instances, 2013 NBA Finals
m.05ssdk5, sports.sports_team_roster.team, Boston Celtics
1958 NBA Finals, common.topic.notable_types, Sports League Championship Event
1976 NBA Finals, common.topic.notable_types, Sports League Championship Event
1960 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, sports.sports_team.championships, 1966 NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0z43nq2
m.0z45_rs, sports.sports_team_roster.team, Boston Celtics
m.0sgrygv, sports.sports_team_roster.team, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1951 NBA Finals
Boston Celtics, basketball.basketball_team.division, Atlantic Division
2011 NBA Finals, common.topic.notable_types, Sports League Championship Event
1964 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
The NBA Finals, time.recurring_event.instances, 2012 NBA Finals
m.02kbcm_, sports.sports_award.season, 1956–57 NBA season
2002 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1988 NBA Finals
National Basketball Association, sports.sports_league.seasons, 1956–57 NBA season
1982 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1961 NBA Finals, sports.sports_championship_event.runner_up, St. Louis Hawks
The NBA Finals, common.topic.webpage, m.09wytr4
1956–57 NBA season, sports.sports_league_season.awards, m.04ynxxy
1981 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1971 NBA Finals
1968 NBA Finals, common.topic.notable_types, Sports League Championship Event
1956–57 NBA season, sports.sports_league_season.awards, m.02kbc88
1981 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1961 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1947 BAA Finals
1956 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, common.topic.webpage, m.09wdcm7
The NBA Finals, common.topic.webpage, m.0b4992q
1963 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Atlanta Hawks, sports.sports_team.championships, 1958 NBA Finals
m.051r766, sports.sports_team_roster.team, Boston Celtics
The NBA Finals, sports.sports_championship.events, 2006 NBA Finals
2010 NBA Finals, sports.sports_championship_event.runner_up, Boston Celtics
Boston Celtics, sports.sports_team.championships, 1957 NBA Finals
Boston Celtics, sports.sports_team.championships, 1981 NBA Finals
m.0ztz0ph, sports.sports_team_roster.team, Boston Celtics
1964 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
2005 NBA Finals, common.topic.notable_types, Sports League Championship Event
2005 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qxt49
m.0w310mt, sports.sports_team_roster.team, Boston Celtics
1956–57 NBA season, sports.sports_league_season.awards, m.02kbc1x
2014 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1950 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0_qxt_d, award.award_honor.award_winner, Boston Celtics
2008 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0_qwxb8, award.award_honor.award_winner, Boston Celtics
1959 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0_qwmq0, award.award_honor.award_winner, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1998 NBA Finals
1995 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1978 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0z43nq2, award.award_honor.award_winner, Boston Celtics
1997 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1982 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1974 NBA Finals
m.02kbc88, sports.sports_award.team, Boston Celtics
1984 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1990 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, common.topic.webpage, m.04228m4
1951 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, sports.sports_team.championships, 1968 NBA Finals
1986 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1956–57 NBA season, sports.sports_league_season.league, National Basketball Association
1989 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, common.topic.webpage, m.09wzs_4
Boston Celtics, award.award_nominee.award_nominations, m.0z43hm7
m.0crtdcs, sports.sports_league_participation.team, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1961 NBA Finals
2014 NBA Finals, freebase.valuenotation.is_reviewed, Runner-up
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 3
1962 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1955 NBA Finals
1968 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
2011 NBA Finals, time.event.instance_of_recurring_event, The NBA Finals
1957 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1956–57 NBA season, common.topic.notable_for, g.125fypc1k
Boston Celtics, sports.sports_team.championships, 1969 NBA Finals
2013 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qwpgd
The NBA Finals, common.topic.webpage, m.09wddf9
1981 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.championships, 1964 NBA Finals
1969 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1954 NBA Finals
m.0crt3m_, sports.sports_league_participation.team, Boston Celtics
m.0_qxt92, award.award_honor.award_winner, Boston Celtics

Answer: 1957 NBA Finals