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 ":".
Her
armament
consisted
of
three
single-mounted
4
inch
dual
purpose
anti-aircraft
guns—two
forward
and
one
aft—and
fifteen
20
mm
cannon
on
single
or
twin
mounts
.
Her:O
armament:O
consisted:O
of:O
three:O
single-mounted:O
4:O
inch:O
dual:O
purpose:O
anti-aircraft:O
guns—two:O
forward:O
and:O
one:O
aft—and:O
fifteen:O
20:O
mm:O
cannon:O
on:O
single:O
or:O
twin:O
mounts:O
.:O