With no explanation, label each line with "O", "organization-sportsteam", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
49ers
won
their
second
Super
Bowl
,
defeating
the
Dolphins
38–16
.
The:O
49ers:organization-sportsteam
won:O
their:O
second:O
Super:event-sportsevent
Bowl:event-sportsevent
,:O
defeating:O
the:O
Dolphins:organization-sportsteam
38–16:O
.:O