With no explanation, label each line with "location-GPE", "person-athlete", "event-sportsevent", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Baghdatis
started
his
season
on
the
2008
ATP
Tour
at
the
Chennai
Open
in
India
,
where
he
lost
to
Robin
Haase
in
the
first
round
.
Baghdatis:person-athlete
started:O
his:O
season:O
on:O
the:O
2008:event-sportsevent
ATP:event-sportsevent
Tour:event-sportsevent
at:O
the:O
Chennai:event-sportsevent
Open:event-sportsevent
in:O
India:location-GPE
,:O
where:O
he:O
lost:O
to:O
Robin:person-athlete
Haase:person-athlete
in:O
the:O
first:O
round:O
.:O