With no explanation, label each line with "art-film", "O", "person-director", "art-broadcastprogram", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
is
directed
by
Romesh
Sharma
who
is
best
known
for
having
produced
``
Hum
``
(
1991
)
.
It:O
is:O
directed:O
by:O
Romesh:person-director
Sharma:person-director
who:O
is:O
best:O
known:O
for:O
having:O
produced:O
``:O
Hum:art-film
``:O
(:O
1991:O
):O
.:O