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 ":".
Two
paramilitary
soldiers
were
also
killed
in
the
bombing
.
Two:O
paramilitary:O
soldiers:O
were:O
also:O
killed:O
in:O
the:O
bombing:O
.:O