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 ":".
Worth
from
the
late
1980s
to
the
late
1990s
.
Worth:O
from:O
the:O
late:O
1980s:O
to:O
the:O
late:O
1990s:O
.:O