With no explanation, label each line with "art-film", "O", "person-artist/author", "art-broadcastprogram", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1994
,
Cohn
directed
the
student
short
film
``
Developing
``
.
In:O
1994:O
,:O
Cohn:person-artist/author
directed:O
the:O
student:O
short:O
film:O
``:O
Developing:art-film
``:O
.:O