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
employs
around
1300
engineers
.
It:O
employs:O
around:O
1300:O
engineers:O
.:O