With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
David
Heyman
returned
to
produce
.
David:O
Heyman:O
returned:O
to:O
produce:O
.:O