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 ":".
Čilić
made
it
to
the
fourth
round
of
the
2008
Australian
Open
,
taking
out
two
seeds
on
his
way
,
including
2007
Australian
Open
finalist
Fernando
González
.
Čilić:O
made:O
it:O
to:O
the:O
fourth:O
round:O
of:O
the:event-sportsevent
2008:event-sportsevent
Australian:event-sportsevent
Open:event-sportsevent
,:O
taking:O
out:O
two:O
seeds:O
on:O
his:O
way:O
,:O
including:O
2007:event-sportsevent
Australian:event-sportsevent
Open:event-sportsevent
finalist:O
Fernando:person-athlete
González:person-athlete
.:O