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 ":".
Pipeline
transportation
and
oil
and
gas
operations
are
no
longer
active
.
Pipeline:O
transportation:O
and:O
oil:O
and:O
gas:O
operations:O
are:O
no:O
longer:O
active:O
.:O