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 ":".
The
90-minute
film
was
intended
to
air
in
two
parts
.
The:O
90-minute:O
film:O
was:O
intended:O
to:O
air:O
in:O
two:O
parts:O
.:O