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 ":".
It
had
a
brief
revival
in
1989
,
but
closed
down
again
in
1990
.
It:O
had:O
a:O
brief:O
revival:O
in:O
1989:O
,:O
but:O
closed:O
down:O
again:O
in:O
1990:O
.:O