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 ":".
The
earlier
factory
has
been
demolished
and
the
site
awaits
development
.
The:O
earlier:O
factory:O
has:O
been:O
demolished:O
and:O
the:O
site:O
awaits:O
development:O
.:O