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 ":".
The
lawsuit
was
filed
on
May
28
,
2010
.
The:O
lawsuit:O
was:O
filed:O
on:O
May:O
28:O
,:O
2010:O
.:O