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
airline
was
established
in
2003
and
started
operations
on
March
6
,
2003
.
The:O
airline:O
was:O
established:O
in:O
2003:O
and:O
started:O
operations:O
on:O
March:O
6:O
,:O
2003:O
.:O