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 ":".
Instead
,
small
wheel
motors
drove
it
up
the
incline
of
a
tight
helix
.
Instead:O
,:O
small:O
wheel:O
motors:O
drove:O
it:O
up:O
the:O
incline:O
of:O
a:O
tight:O
helix:O
.:O