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 ":".
This
particular
flight
carried
93
passengers
and
11
crew
.
This:O
particular:O
flight:O
carried:O
93:O
passengers:O
and:O
11:O
crew:O
.:O