With no explanation, label each line with "O", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Coming
off
a
Stanley
Cup
Championship
in
1923
,
they
had
won
three
cups
in
the
previous
four
seasons
.
Coming:O
off:O
a:O
Stanley:event-sportsevent
Cup:event-sportsevent
Championship:event-sportsevent
in:O
1923:O
,:O
they:O
had:O
won:O
three:O
cups:O
in:O
the:O
previous:O
four:O
seasons:O
.:O