With no explanation, label each line with "location-GPE", "building-other", "O", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
1999
St.
Petersburg
Open
was
a
tennis
tournament
played
on
indoor
carpet
courts
at
the
Petersburg
Sports
and
Concert
Complex
in
Saint
Petersburg
in
Russia
and
was
part
of
the
World
Series
of
the
1999
ATP
Tour
.
The:O
1999:O
St.:event-sportsevent
Petersburg:event-sportsevent
Open:event-sportsevent
was:O
a:O
tennis:O
tournament:O
played:O
on:O
indoor:O
carpet:O
courts:O
at:O
the:O
Petersburg:building-other
Sports:building-other
and:building-other
Concert:building-other
Complex:building-other
in:O
Saint:location-GPE
Petersburg:location-GPE
in:O
Russia:location-GPE
and:O
was:O
part:O
of:O
the:O
World:O
Series:O
of:O
the:O
1999:O
ATP:event-sportsevent
Tour:O
.:O