With no explanation, label each line with "O", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
was
the
eleventh
round
of
the
2003
Formula
One
season
.
It:O
was:O
the:O
eleventh:O
round:O
of:O
the:O
2003:O
Formula:event-sportsevent
One:event-sportsevent
season:O
.:O