With no explanation, label each line with "location-GPE", "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Gliders
were
incorporated
,
Over
2,100
CG-4
Waco
gliders
had
been
sent
to
the
UK
,
and
after
attrition
during
training
operations
,
1,118
were
available
for
operations
,
along
with
301
larger
Airspeed
Horsa
gliders
received
from
the
British
.
Gliders:O
were:O
incorporated:O
,:O
Over:O
2,100:O
CG-4:product-airplane
Waco:product-airplane
gliders:product-airplane
had:O
been:O
sent:O
to:O
the:O
UK:location-GPE
,:O
and:O
after:O
attrition:O
during:O
training:O
operations:O
,:O
1,118:O
were:O
available:O
for:O
operations:O
,:O
along:O
with:O
301:O
larger:O
Airspeed:O
Horsa:product-airplane
gliders:product-airplane
received:O
from:O
the:O
British:location-GPE
.:O