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: In which NBA championship did the Celtics win in a sweep of 4 games to 0.? 
Knowledge Triplets: Boston Celtics, award.award_winner.awards_won, m.0_qwy6n
Boston Celtics, common.topic.article, m.0bwjv
1969 NBA Finals, common.topic.notable_for, g.1259hmn9h
m.0_qwmq0, award.award_honor.award_winner, Boston Celtics
1958–59 NBA season, sports.sports_league_season.championship, 1959 NBA Finals
1959 NBA Finals, sports.sports_championship_event.season, 1958–59 NBA season
The NBA Finals, sports.sports_championship.events, 1964 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0_qz550
Boston Celtics, sports.sports_team.roster, m.0r5drlp
NBA Finals, tv.tv_program.subjects, Cleveland Cavaliers
Boston Celtics, sports.sports_team.roster, m.0j2qrz4
1963 NBA Finals, common.topic.notable_types, Sports League Championship Event
The NBA Finals, sports.sports_championship.events, 1963 NBA Finals
1974 NBA Finals, common.topic.notable_for, g.1254xjkz8
1976 NBA Finals, common.topic.article, m.09l8zt
1965 NBA Finals, common.topic.notable_types, Sports League Championship Event
1969 NBA Finals, common.topic.article, m.08dxfy
1969 NBA Finals, sports.sports_championship_event.season, 1968–69 NBA season
Boston Celtics, sports.sports_team.championships, 1959 NBA Finals
Boston Celtics, sports.sports_team.league, m.0crt3m_
Boston Celtics, sports.sports_team.championships, 1962 NBA Finals
m.0ghq5d9, tv.tv_guest_role.episodes_appeared_in, 1974 NBA Finals Game 1
1964 NBA Finals, common.topic.article, m.0cs27r
The NBA Finals, sports.sports_championship.events, 1984 NBA Finals
1962 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_championship_event.champion, 1959 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0pd51c6
Boston Celtics, sports.sports_team.roster, m.0j2dtlm
1966 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1964 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1967–68 NBA season, sports.sports_league_season.championship, 1968 NBA Finals
m.0ghqdhf, tv.tv_guest_role.episodes_appeared_in, 1974 NBA Finals Game 4
1968 NBA Finals, common.topic.notable_types, Sports League Championship Event
1960–61 NBA season, sports.sports_league_season.championship, 1961 NBA Finals
Boston Celtics, common.topic.notable_for, g.125dcb2tv
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 2
1957 NBA Finals, sports.sports_championship_event.season, 1956–57 NBA season
Boston Celtics, award.award_winner.awards_won, m.0_qwmq0
Boston Celtics, sports.sports_team.roster, m.0zv1l6n
Boston Celtics, sports.sports_team.roster, m.0n4hr_g
1962 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
The NBA Finals, sports.sports_championship.events, 1976 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0zv066w
1974 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qrm59
m.0_qwxb8, award.award_honor.award_winner, Boston Celtics
1959 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1976 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1974 NBA Finals, sports.sports_championship_event.runner_up, Milwaukee Bucks
Boston Celtics, sports.sports_team.colors, Green
Boston Celtics, sports.sports_team.roster, m.0ztw1_3
Boston Celtics, award.award_winner.awards_won, m.0_qwpgd
Boston Celtics, sports.sports_team.roster, m.0z3ztq1
2008 NBA Finals, sports.sports_championship_event.season, 2007–08 NBA season
Boston Celtics, sports.sports_team.roster, m.0w7q4pg
1965 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1960 NBA Finals, sports.sports_championship_event.runner_up, St. Louis Hawks
1974 NBA Finals Game 1, common.topic.notable_types, TV Episode
Boston Celtics, sports.sports_team.roster, m.0n4hs8t
The NBA Finals, sports.sports_championship.events, 1966 NBA Finals
The NBA Finals, sports.sports_championship.events, 1962 NBA Finals
1960 NBA Finals, common.topic.notable_for, g.1259ftml5
1974 NBA Finals, common.topic.article, m.0cs1gh
1974 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, common.topic.webpage, m.04228m4
1984 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1984 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
Boston Celtics, award.award_winner.awards_won, m.0_qxt_d
1968–69 NBA season, sports.sports_league_season.championship, 1969 NBA Finals
Boston Celtics, sports.sports_team.arena_stadium, XL Center
1956–57 NBA season, sports.sports_league_season.championship, 1957 NBA Finals
m.0_qwykr, award.award_honor.award_winner, Boston Celtics
1969 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
1965 NBA Finals, sports.sports_championship_event.season, 1964–65 NBA season
Boston Celtics, basketball.basketball_team.division, Atlantic Division
1983–84 NBA season, sports.sports_league_season.championship, 1984 NBA Finals
1962 NBA Finals, common.topic.article, m.0cs2f9
1957 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1961 NBA Finals, common.topic.article, m.0cs2f_
m.0_qxt49, award.award_honor.award_winner, Boston Celtics
1968 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
m.0_qxqdw, award.award_honor.award_winner, Boston Celtics
Boston Celtics, sports.sports_team.venue, m.0w_jqnb
Boston Celtics, sports.sports_team.championships, 2008 NBA Finals
1974 NBA Finals Game 3, common.topic.notable_types, TV Episode
m.0_qxt5p, award.award_honor.award_winner, Boston Celtics
The NBA Finals, sports.sports_championship.events, 1961 NBA Finals
1957 NBA Finals, common.topic.notable_types, Sports League Championship Event
1963 NBA Finals, common.topic.article, m.0cs29h
Boston Celtics, sports.sports_team.roster, m.0_y32g5
m.0crtdcs, sports.sports_league_participation.team, Boston Celtics
Boston Celtics, sports.sports_team.roster, m.0zw_ktw
1974 NBA Finals, sports.sports_championship_event.season, 1973–74 NBA season
1969 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Boston Celtics, award.award_winner.awards_won, m.0_qwylx
2008 NBA Finals, common.topic.article, m.0403mzv
Boston Celtics, award.award_winner.awards_won, m.0_qxt49
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 6
m.04228m4, common.webpage.topic, Boston Celtics
1963–64 NBA season, sports.sports_league_season.championship, 1964 NBA Finals
2008 NBA Finals, common.topic.notable_for, g.1255z_v6h
m.0gh_ptn, tv.tv_guest_role.episodes_appeared_in, 1981 NBA Finals Game 6
1976 NBA Finals Game 5, common.topic.notable_for, g.125bldvww
1985–86 NBA season, sports.sports_league_season.championship, 1986 NBA Finals
The NBA Finals, sports.sports_championship.events, 2008 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0w7dhrf
Boston Celtics, sports.sports_team.roster, m.0_qxftc
The NBA Finals, sports.sports_championship.events, 1960 NBA Finals
Boston Celtics, sports.sports_team.colors, Black
Boston Celtics, sports.sports_team.roster, m.0n4hsdz
m.0_qwy6n, award.award_honor.award_winner, Boston Celtics
Phoenix Suns, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 1
m.0k2_4y3, sports.sports_team_roster.team, Boston Celtics
Boston Celtics, sports.sports_team.roster, m.0r91kbr
1986 NBA Finals, sports.sports_championship_event.season, 1985–86 NBA season
Boston Celtics, sports.sports_team.championships, 1976 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0j2dtm7
Boston Celtics, tv.tv_subject.tv_programs, NBA Finals
Boston Celtics, sports.sports_team.location, Boston
Boston Celtics, sports.sports_team.roster, m.0k2plv9
1976 NBA Finals Game 4, common.topic.notable_types, TV Episode
Boston Celtics, sports.sports_team.roster, m.0sgrygv
1976 NBA Finals Game 3, common.topic.notable_types, TV Episode
1966 NBA Finals, common.topic.notable_types, Sports League Championship Event
1957 NBA Finals, common.topic.notable_for, g.125906rkn
Boston Celtics, sports.sports_team.roster, m.0sxfyw9
1965 NBA Finals, common.topic.notable_for, g.1255p7x69
Boston Celtics, sports.sports_team.roster, m.0_qz5yn
Boston Celtics, sports.sports_team.roster, m.02397wj
Boston Celtics, award.award_winner.awards_won, m.0_qxqdw
Boston Celtics, sports.sports_team.coaches, m.0w3_qv3
Boston Celtics, sports.sports_team.roster, m.0j2dtf_
Boston Celtics, sports.sports_team.roster, m.0ndtw33
2008 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.roster, m.05yr4cz
1960 NBA Finals, sports.sports_championship_event.season, 1959–60 NBA season
m.0_qwpgd, award.award_honor.award_winner, Boston Celtics
1976 NBA Finals, sports.sports_championship_event.runner_up, Phoenix Suns
Boston Celtics, sports.sports_team.roster, m.0ztygd7
1974 NBA Finals Game 7, common.topic.notable_for, g.125fyjll5
1981 NBA Finals Game 2, common.topic.notable_types, TV Episode
Boston Celtics, award.award_winner.awards_won, m.0_qwxb8
Brad Stevens, basketball.basketball_coach.team, Boston Celtics
1986 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.roster, m.0w7psvt
1974 NBA Finals Game 5, common.topic.notable_for, g.1259g2rlk
1968 NBA Finals, common.topic.notable_for, g.125fkyjb8
1957 NBA Finals, sports.sports_championship_event.runner_up, St. Louis Hawks
1960 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, sports.sports_team.roster, m.0wb745r
1981 NBA Finals Game 6, common.topic.notable_types, TV Episode
The NBA Finals, sports.sports_championship.events, 1981 NBA Finals
1981 NBA Finals Game 5, common.topic.notable_types, TV Episode
Boston Celtics, sports.sports_team.roster, m.0ztw1qz
Boston Celtics, sports.sports_team.roster, m.0z45_rs
Boston Celtics, sports.sports_team.roster, m.0z3zm63
m.0gj1wvs, tv.tv_guest_role.episodes_appeared_in, 1981 NBA Finals Game 3
1986 NBA Finals, sports.sports_championship_event.runner_up, Houston Rockets
Boston Celtics, sports.sports_team.roster, m.0w310mt
Boston Celtics, sports.sports_team.roster, m.0j2dtls
1961 NBA Finals, common.topic.notable_for, g.125fg41zl
m.0z43nq2, award.award_honor.award_winner, Boston Celtics
1964 NBA Finals, sports.sports_championship_event.runner_up, Golden State Warriors
Boston Celtics, sports.sports_team.roster, m.0j2dths
1962 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
m.0_qwylx, award.award_honor.award_winner, Boston Celtics
1986 NBA Finals, common.topic.article, m.08x9wk
The NBA Finals, sports.sports_championship.events, 1959 NBA Finals
1966 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Cleveland Cavaliers, tv.tv_subject.tv_programs, NBA Finals
1961–62 NBA season, sports.sports_league_season.championship, 1962 NBA Finals
m.0crt3m_, sports.sports_league_participation.team, Boston Celtics
Boston Celtics, sports.sports_team.championships, 1986 NBA Finals
Boston Celtics, award.award_winner.awards_won, m.0_qwykr
m.0_qxt_d, award.award_honor.award_winner, Boston Celtics
1984 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, sports.sports_team.venue, m.0wz1_wj
National Basketball Association, sports.sports_league.championship, The NBA Finals
Boston Celtics, sports.sports_team.roster, m.0pd51gh
Boston Celtics, sports.sports_team.championships, 1981 NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 3
Boston Celtics, award.award_winner.awards_won, m.0_qxt5p
1981 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1966 NBA Finals, common.topic.article, m.0cs24n
Boston Celtics, basketball.basketball_team.conference, Eastern Conference
1974 NBA Finals Game 3, common.topic.notable_for, g.125gmt5bx
1976 NBA Finals Game 5, common.topic.notable_types, TV Episode
1974 NBA Finals Game 4, common.topic.notable_types, TV Episode
1981 NBA Finals, common.topic.notable_for, g.125fkyb2k
Boston Celtics, sports.sports_team.roster, m.0113ywh7
1968 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1965–66 NBA season, sports.sports_league_season.championship, 1966 NBA Finals
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 5
1966 NBA Finals, common.topic.notable_for, g.125d40dx6
1976 NBA Finals Game 6, common.topic.notable_for, g.125f_zdr8
Boston Celtics, sports.sports_team.roster, m.0k5jgfm
Boston Celtics, sports.sports_team.roster, m.0k8hkhn
Phoenix Suns, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 6
Boston Celtics, sports.sports_team.roster, m.0z4tlyt
Phoenix Suns, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 3
Boston Celtics, sports.sports_team.championships, 1964 NBA Finals
m.0_qwy8c, award.award_honor.award_winner, Boston Celtics
Boston Celtics, sports.sports_team.roster, m.0n4pnkt
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 5
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 2
1986 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1974 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1986 NBA Finals, common.topic.notable_types, Sports League Championship Event
m.0ghxhg7, tv.tv_guest_role.episodes_appeared_in, 1981 NBA Finals Game 4
Boston Celtics, sports.sports_team.roster, m.0k8hcr4
m.0_qrm59, award.award_honor.award_winner, Boston Celtics
Boston Celtics, sports.sports_team.championships, 1960 NBA Finals
1976 NBA Finals, common.topic.notable_for, g.125b1mypx
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 3
Boston Celtics, sports.sports_team.roster, m.0k2_4y3
Boston Celtics, sports.sports_team.roster, m.0z46cvj
1963 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.coaches, m.0w1g5hx
1976 NBA Finals Game 1, common.topic.notable_types, TV Episode
1960 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.championships, 1969 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0j2h1r8
1961 NBA Finals, sports.sports_championship_event.runner_up, St. Louis Hawks
Phoenix Suns, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 5
1974 NBA Finals Game 5, common.topic.notable_types, TV Episode
Boston Celtics, award.award_winner.awards_won, m.0z43nq2
1961 NBA Finals, sports.sports_championship_event.season, 1960–61 NBA season
1965 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
The NBA Finals, sports.sports_championship.events, 1969 NBA Finals
1981 NBA Finals, common.topic.article, m.08x9_0
1959 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
1981 NBA Finals Game 4, common.topic.notable_types, TV Episode
Boston Celtics, sports.sports_team.roster, m.0w7pb_7
The NBA Finals, sports.sports_championship.events, 1986 NBA Finals
The NBA Finals, sports.sports_championship.league, National Basketball Association
Boston Celtics, sports.sports_team.roster, m.0w7qk0x
1974 NBA Finals Game 2, common.topic.notable_for, g.1256f18pr
1963 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
Boston Celtics, sports.sports_team.roster, m.0k5y550
Boston Celtics, sports.sports_team.roster, m.0j2dtmd
Boston Celtics, award.award_winner.awards_won, m.0_qxt8j
Boston Celtics, sports.sports_team.roster, m.0_6y7kr
1964 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.roster, m.0fq7jy2
1984 NBA Finals, sports.sports_championship_event.season, 1983–84 NBA season
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 4
1963 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
m.0_qxtb9, award.award_honor.award_winner, Boston Celtics
1976 NBA Finals, sports.sports_championship_event.season, 1975–76 NBA season
1973–74 NBA season, sports.sports_league_season.championship, 1974 NBA Finals
Boston Celtics, sports.sports_team.arena_stadium, TD Garden
1976 NBA Finals Game 3, common.topic.notable_for, g.1256tdh4m
1965 NBA Finals, common.topic.article, m.0cs26c
1981 NBA Finals, sports.sports_championship_event.season, 1980–81 NBA season
Boston Celtics, sports.sports_team.roster, m.0n9gsbf
Eastern Conference, basketball.basketball_conference.teams, Boston Celtics
Boston Celtics, award.award_winner.awards_won, m.0_qwy8c
2007–08 NBA season, sports.sports_league_season.championship, 2008 NBA Finals
2008 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 7
1962 NBA Finals, sports.sports_championship_event.season, 1961–62 NBA season
2008 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, award.award_winner.awards_won, m.0_qxt92
1969 NBA Finals, common.topic.notable_types, Sports League Championship Event
1962 NBA Finals, common.topic.notable_for, g.12555pvt7
1963 NBA Finals, common.topic.notable_for, g.1258cg_6y
1961 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Phoenix Suns, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 4
1964 NBA Finals, common.topic.notable_types, Sports League Championship Event
1959–60 NBA season, sports.sports_league_season.championship, 1960 NBA Finals
1968 NBA Finals, common.topic.article, m.0cs227
Boston Celtics, sports.sports_team.roster, m.0_th72d
Boston Celtics, sports.sports_team.championships, 1963 NBA Finals
1966 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
NBA Finals, tv.tv_program.seasons, NBA Finals - Season 4
1962 NBA Finals, common.topic.notable_types, Sports League Championship Event
1961 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, sports.sports_team.roster, m.0w2s9yt
1981 NBA Finals Game 3, common.topic.notable_types, TV Episode
1981 NBA Finals Game 1, common.topic.notable_types, TV Episode
1960 NBA Finals, common.topic.article, m.0cs2hc
m.0_4wx6j, sports.sports_team_roster.team, Boston Celtics
1957 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
m.0_qxt8j, award.award_honor.award_winner, Boston Celtics
m.0_qwyjd, award.award_honor.award_winner, Boston Celtics
1981 NBA Finals, sports.sports_championship_event.runner_up, Houston Rockets
Boston Celtics, sports.sports_team.roster, m.0_qysl7
1981 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, sports.sports_team.roster, m.0_c3znb
Boston Celtics, tv.tv_subject.tv_episodes, 1974 NBA Finals Game 6
m.0_qwx1_, award.award_honor.award_winner, Boston Celtics
Boston Celtics, award.award_winner.awards_won, m.0_qxtb9
1976 NBA Finals Game 2, common.topic.notable_for, g.125cx_50l
Boston Celtics, sports.sports_team.roster, m.0j2dzwh
NBA Finals, tv.tv_program.subjects, Golden State Warriors
1961 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
NBA Finals, tv.tv_program.subjects, Boston Celtics
1957 NBA Finals, common.topic.article, m.0cs2n5
Boston Celtics, sports.sports_team.championships, 1974 NBA Finals
Atlantic Division, basketball.basketball_division.teams, Boston Celtics
1984 NBA Finals, common.topic.article, m.08x9xz
1966 NBA Finals, sports.sports_championship_event.season, 1965–66 NBA season
1960 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Boston Celtics, sports.sports_team.roster, m.0r5ds1t
Boston Celtics, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 1
Boston Celtics, sports.sports_team.colors, Gold
1959 NBA Finals, common.topic.notable_for, g.125fgwwq2
Boston Celtics, sports.sports_team.roster, m.0r62b6w
1968 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1976 NBA Finals Game 2, common.topic.notable_types, TV Episode
1965 NBA Finals, sports.sports_championship_event.runner_up, Los Angeles Lakers
Boston Celtics, sports.sports_team.championships, 1965 NBA Finals
1974 NBA Finals Game 6, common.topic.notable_types, TV Episode
Boston Celtics, sports.sports_team.roster, m.0k8hh28
1969 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1976 NBA Finals, common.topic.notable_types, Sports League Championship Event
1959 NBA Finals, common.topic.notable_types, Sports League Championship Event
Boston Celtics, basketball.basketball_team.head_coach, Brad Stevens
Boston Celtics, sports.sports_team.roster, m.0wb6zc8
1976 NBA Finals Game 4, common.topic.notable_for, g.1256sbxwb
Boston Celtics, sports.sports_team.roster, m.0j2dtm2
2008 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1963 NBA Finals, sports.sports_championship_event.season, 1962–63 NBA season
1959 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
Boston Celtics, sports.sports_team.roster, m.0z4403l
The NBA Finals, sports.sports_championship.events, 1974 NBA Finals
1964–65 NBA season, sports.sports_league_season.championship, 1965 NBA Finals
1974 NBA Finals Game 2, common.topic.notable_types, TV Episode
Boston Celtics, sports.sports_team.roster, m.0_4wx6j
1975–76 NBA season, sports.sports_league_season.championship, 1976 NBA Finals
Boston Celtics, sports.sports_team.championships, 1984 NBA Finals
1986 NBA Finals, common.topic.notable_for, g.12553j_24
Philadelphia Warriors, tv.tv_subject.tv_programs, NBA Finals
m.0_qxt92, award.award_honor.award_winner, Boston Celtics
1964 NBA Finals, common.topic.notable_for, g.1255kr8yz
1976 NBA Finals Game 1, common.topic.notable_for, g.125gdmpjn
1984 NBA Finals, sports.sports_championship_event.champion, Boston Celtics
1976 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
Boston Celtics, sports.sports_team.championships, 1961 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0_qy714
The NBA Finals, sports.sports_championship.events, 1965 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0j2n1tp
1984 NBA Finals, common.topic.notable_for, g.1257cf2pg
1959 NBA Finals, common.topic.article, m.0cs2j1
Boston Celtics, award.award_winner.awards_won, m.0_qwx1_
NBA Finals, common.topic.notable_for, g.1257yffdb
Boston Celtics, sports.sports_team.roster, m.0j2dtly
Boston Celtics, sports.sports_team.sport, Basketball
1974 NBA Finals Game 7, common.topic.notable_types, TV Episode
1976 NBA Finals Game 6, common.topic.notable_types, TV Episode
Boston Celtics, sports.sports_team.championships, 1968 NBA Finals
1980–81 NBA season, sports.sports_league_season.championship, 1981 NBA Finals
1981 NBA Finals, sports.sports_championship_event.championship, The NBA Finals
1968 NBA Finals, sports.sports_championship_event.season, 1967–68 NBA season
Boston Celtics, sports.sports_team.roster, m.0ztz0ph
1964 NBA Finals, sports.sports_championship_event.season, 1963–64 NBA season
Boston Celtics, sports.sports_team.roster, m.0k2pdrr
1974 NBA Finals Game 6, common.topic.notable_for, g.12597kq1n
The NBA Finals, sports.sports_championship.events, 1968 NBA Finals
Phoenix Suns, tv.tv_subject.tv_episodes, 1976 NBA Finals Game 2
Boston Celtics, sports.sports_team.roster, m.0z5k297
Boston Celtics, award.award_winner.awards_won, m.0_qwyjd
Boston Celtics, sports.sports_team.championships, 1966 NBA Finals
Boston Celtics, sports.sports_team.league, m.0crtdcs
The NBA Finals, sports.sports_championship.events, 1957 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0kjrh8t
Boston Celtics, sports.sports_team.championships, 1957 NBA Finals
NBA Finals, tv.tv_program.subjects, Philadelphia Warriors
1962–63 NBA season, sports.sports_league_season.championship, 1963 NBA Finals
Boston Celtics, sports.sports_team.roster, m.0wp8ltr
Boston Celtics, basketball.basketball_team.previous_coaches, m.0w2j6hy

Answer: 1959 NBA Finals