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 ":".
At
the
French
Open
,
he
lost
in
the
first
round
to
Simone
Bolelli
in
three
sets
.
At:O
the:O
French:event-sportsevent
Open:event-sportsevent
,:O
he:O
lost:O
in:O
the:O
first:O
round:O
to:O
Simone:person-athlete
Bolelli:person-athlete
in:O
three:O
sets:O
.:O