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 ":".
Some
aircraft
have
used
flat-six
engines
originally
designed
for
cars
.
Some:O
aircraft:O
have:O
used:O
flat-six:O
engines:O
originally:O
designed:O
for:O
cars:O
.:O