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 ":".
The
season
progressed
through
the
regular
season
and
concluded
with
the
1951
College
World
Series
.
The:O
season:O
progressed:O
through:O
the:O
regular:O
season:O
and:O
concluded:O
with:O
the:O
1951:O
College:event-sportsevent
World:event-sportsevent
Series:event-sportsevent
.:O