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
hospital
was
completed
in
1844
,
and
still
exists
.
The:O
hospital:O
was:O
completed:O
in:O
1844:O
,:O
and:O
still:O
exists:O
.:O