With no explanation, label each line with "O", "person-athlete", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
After
the
Beijing
Olympics
,
Llaneras
retired
.
After:O
the:O
Beijing:event-sportsevent
Olympics:event-sportsevent
,:O
Llaneras:person-athlete
retired:O
.:O