With no explanation, label each line with "O", "person-actor", "art-other", "art-broadcastprogram", "art-film", "art-music", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Mel
Gibson
was
at
that
same
press
conference
,
where
it
was
announced
that
he
would
play
Hamlet
.
Mel:person-actor
Gibson:person-actor
was:O
at:O
that:O
same:O
press:O
conference:O
,:O
where:O
it:O
was:O
announced:O
that:O
he:O
would:O
play:O
Hamlet:art-other
.:O