With no explanation, label each line with "O", "person-actor", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Gulzar
Chahal
is
a
Punjabi
film
actor
and
producer
.
Gulzar:person-actor
Chahal:person-actor
is:O
a:O
Punjabi:O
film:O
actor:O
and:O
producer:O
.:O