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 ":".
She
competed
at
the
1992
Summer
Olympics
and
1996
Summer
Olympics
.
She:O
competed:O
at:O
the:O
1992:O
Summer:event-sportsevent
Olympics:event-sportsevent
and:O
1996:O
Summer:event-sportsevent
Olympics:event-sportsevent
.:O