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 ":".
It
was
the
first
of
three
consecutive
US
Open
titles
for
Lendl
and
part
of
a
run
of
eight
consecutive
US
Open
finals
.
It:O
was:O
the:O
first:O
of:O
three:O
consecutive:O
US:event-sportsevent
Open:event-sportsevent
titles:O
for:O
Lendl:person-athlete
and:O
part:O
of:O
a:O
run:O
of:O
eight:O
consecutive:O
US:event-sportsevent
Open:event-sportsevent
finals:O
.:O