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
major
addition
and
renovation
completed
in
1979
.
A:O
major:O
addition:O
and:O
renovation:O
completed:O
in:O
1979:O
.:O