With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Antonio
is
still
working
in
the
hospital
.
Antonio:person-other
is:O
still:O
working:O
in:O
the:O
hospital:O
.:O