With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
``
The
producers
Robert
Chartoff
and
Irwin
Winkler
came
to
me
and
said
they
wanted
to
do
a
film
about
vice
cops
.
``:O
The:O
producers:O
Robert:person-artist/author
Chartoff:person-artist/author
and:O
Irwin:person-artist/author
Winkler:person-artist/author
came:O
to:O
me:O
and:O
said:O
they:O
wanted:O
to:O
do:O
a:O
film:O
about:O
vice:O
cops:O
.:O