With no explanation, label each line with "O", "person-actor", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
sees
the
movie
's
main
actor
and
playboy
,
Marcello
Mastroianni
talking
to
an
actress
:
Luciana
.
He:O
sees:O
the:O
movie:O
's:O
main:O
actor:O
and:O
playboy:O
,:O
Marcello:person-other
Mastroianni:person-other
talking:O
to:O
an:O
actress:O
::O
Luciana:person-actor
.:O