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 ":".
They
have
long
been
used
as
containers
for
household
items
like
paper
clips
,
coins
,
sewing
materials
and
other
small
items
.
They:O
have:O
long:O
been:O
used:O
as:O
containers:O
for:O
household:O
items:O
like:O
paper:O
clips:O
,:O
coins:O
,:O
sewing:O
materials:O
and:O
other:O
small:O
items:O
.:O