With no explanation, label each line with "art-broadcastprogram", "O", "person-actor", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
On
21
October
2012
,
it
was
announced
Crossley
would
make
a
brief
return
to
``
Emmerdale
``
.
On:O
21:O
October:O
2012:O
,:O
it:O
was:O
announced:O
Crossley:person-actor
would:O
make:O
a:O
brief:O
return:O
to:O
``:O
Emmerdale:art-broadcastprogram
``:O
.:O