With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
This
race
marked
the
first
time
that
the
East
and
West
series
would
meet
during
the
regular
season
for
a
points
race
.
This:O
race:O
marked:O
the:O
first:O
time:O
that:O
the:O
East:O
and:O
West:O
series:O
would:O
meet:O
during:O
the:O
regular:O
season:O
for:O
a:O
points:O
race:O
.:O