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
2011
NHL
Entry
Draft
was
the
49th
NHL
Entry
Draft
.
The:O
2011:O
NHL:event-sportsevent
Entry:event-sportsevent
Draft:event-sportsevent
was:O
the:O
49th:O
NHL:event-sportsevent
Entry:event-sportsevent
Draft:event-sportsevent
.:O