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
service
was
subsidized
by
the
Essential
Air
Service
program
.
The:O
service:O
was:O
subsidized:O
by:O
the:O
Essential:O
Air:O
Service:O
program:O
.:O