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 ":".
Each
regiment
had
three
battalions
.
Each:O
regiment:O
had:O
three:O
battalions:O
.:O