With no explanation, label each line with "O", "organization-sportsleague", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
On
August
12
,
2007
,
the
Titans
announced
that
they
would
be
joining
the
World
Indoor
Football
League
for
the
2008
season
.
On:O
August:O
12:O
,:O
2007:O
,:O
the:O
Titans:organization-sportsteam
announced:O
that:O
they:O
would:O
be:O
joining:O
the:O
World:organization-sportsleague
Indoor:organization-sportsleague
Football:organization-sportsleague
League:organization-sportsleague
for:O
the:O
2008:O
season:O
.:O