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 ":".
Some
of
these
rifles
are
still
in
competitive
use
today
although
with
the
benefit
of
new
barrels
.
Some:O
of:O
these:O
rifles:O
are:O
still:O
in:O
competitive:O
use:O
today:O
although:O
with:O
the:O
benefit:O
of:O
new:O
barrels:O
.:O