With no explanation, label each line with "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
IXc
,
and
North
American
Aviation
P-51D
Mustang
model
kits
.
IXc:O
,:O
and:O
North:product-airplane
American:product-airplane
Aviation:product-airplane
P-51D:product-airplane
Mustang:product-airplane
model:O
kits:O
.:O