With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
met
the
actor
twice
before
casting
him
in
the
role
of
Wang
Chi
only
a
few
days
before
principal
photography
.
He:O
met:O
the:O
actor:O
twice:O
before:O
casting:O
him:O
in:O
the:O
role:O
of:O
Wang:person-other
Chi:person-other
only:O
a:O
few:O
days:O
before:O
principal:O
photography:O
.:O