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 ":".
20
)
Act
1933
(
act
no
.
20:O
):O
Act:O
1933:O
(:O
act:O
no:O
.:O