With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
It
was
introduced
on
25
April
2006
and
released
in
July
2006
.
It:O
was:O
introduced:O
on:O
25:O
April:O
2006:O
and:O
released:O
in:O
July:O
2006:O
.:O