With no explanation, label each line with "O", "organization-sportsteam", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
tournament
concluded
with
the
Eastern
Division
champion
Boston
Celtics
defeating
the
Western
Division
champion
Los
Angeles
Lakers
4
games
to
3
in
the
NBA
Finals
.
The:O
tournament:O
concluded:O
with:O
the:O
Eastern:O
Division:O
champion:O
Boston:organization-sportsteam
Celtics:organization-sportsteam
defeating:O
the:O
Western:O
Division:O
champion:O
Los:organization-sportsteam
Angeles:organization-sportsteam
Lakers:organization-sportsteam
4:O
games:O
to:O
3:O
in:O
the:O
NBA:event-sportsevent
Finals:event-sportsevent
.:O