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 ":".
Discarding
the
2002
Wimbledon
quarterfinal
,
Sá
reached
his
best
results
on
doubles
.
Discarding:O
the:O
2002:event-sportsevent
Wimbledon:event-sportsevent
quarterfinal:event-sportsevent
,:O
Sá:person-athlete
reached:O
his:O
best:O
results:O
on:O
doubles:O
.:O