With no explanation, label each line with "art-broadcastprogram", "O", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
He
also
appeared
on
the
``
Comedy
Central
Roast
of
William
Shatner
``
.
He:O
also:O
appeared:O
on:O
the:O
``:O
Comedy:art-broadcastprogram
Central:art-broadcastprogram
Roast:art-broadcastprogram
of:art-broadcastprogram
William:art-broadcastprogram
Shatner:art-broadcastprogram
``:O
.:O