With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
American
training
manuals
warned
of
casualties
at
up
to
.
American:location-GPE
training:O
manuals:O
warned:O
of:O
casualties:O
at:O
up:O
to:O
.:O