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 ":".
After
considering
several
options
,
they
try
to
make
a
short
film
.
After:O
considering:O
several:O
options:O
,:O
they:O
try:O
to:O
make:O
a:O
short:O
film:O
.:O