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 ":".
Many
historic
buildings
have
celebrated
ceilings
.
Many:O
historic:O
buildings:O
have:O
celebrated:O
ceilings:O
.:O