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 ":".
Revolvers
have
a
looser
gas
seal
between
the
barrel
and
the
cylinder
that
emits
noise
from
escaping
gases
.
Revolvers:O
have:O
a:O
looser:O
gas:O
seal:O
between:O
the:O
barrel:O
and:O
the:O
cylinder:O
that:O
emits:O
noise:O
from:O
escaping:O
gases:O
.:O