With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Carbon
monoxide
is
colorless
,
odorless
,
and
tasteless
,
but
highly
toxic
.
Carbon:other-chemicalthing
monoxide:other-chemicalthing
is:O
colorless:O
,:O
odorless:O
,:O
and:O
tasteless:O
,:O
but:O
highly:O
toxic:O
.:O