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 ":".
The
regular
season
began
on
March
29
and
ended
on
August
9
,
with
the
postseason
being
held
between
August
15
and
21
.
The:O
regular:O
season:O
began:O
on:O
March:O
29:O
and:O
ended:O
on:O
August:O
9:O
,:O
with:O
the:O
postseason:O
being:O
held:O
between:O
August:O
15:O
and:O
21:O
.:O