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 ":".
A
Canadian
version
exists
with
modified
content
.
A:O
Canadian:O
version:O
exists:O
with:O
modified:O
content:O
.:O