With no explanation, label each line with "building-other", "O", "product-car", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Many
U.S.
national
parks
have
discussed
or
enacted
roadless
rules
and
partial
or
total
bans
on
ORVs
.
Many:O
U.S.:building-other
national:building-other
parks:building-other
have:O
discussed:O
or:O
enacted:O
roadless:O
rules:O
and:O
partial:O
or:O
total:O
bans:O
on:O
ORVs:product-car
.:O