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 ":".
He
published
his
debut
poem
in
1970
and
debut
poetry
book
in
1980
.
He:O
published:O
his:O
debut:O
poem:O
in:O
1970:O
and:O
debut:O
poetry:O
book:O
in:O
1980:O
.:O