With no explanation, label each line with "product-airplane", "O", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
When
involved
in
the
CSAR
mission
,
A-10
s
can
neutralize
enemy
threats
to
friendly
survivors
on
the
ground
,
engaging
hostile
forces
,
with
their
GAU-8
30
mm
Gatling
gun
,
which
is
unique
to
the
A-10
Thunderbolt
II
.
When:O
involved:O
in:O
the:O
CSAR:O
mission:O
,:O
A-10:product-airplane
s:O
can:O
neutralize:O
enemy:O
threats:O
to:O
friendly:O
survivors:O
on:O
the:O
ground:O
,:O
engaging:O
hostile:O
forces:O
,:O
with:O
their:O
GAU-8:product-weapon
30:O
mm:O
Gatling:O
gun:O
,:O
which:O
is:O
unique:O
to:O
the:O
A-10:product-airplane
Thunderbolt:product-airplane
II:product-airplane
.:O