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 ":".
The
company
has
sent
care
packages
to
U.S
.
troops
in
Iraq
.
The:O
company:O
has:O
sent:O
care:O
packages:O
to:O
U.S:location-GPE
.:location-GPE
troops:O
in:O
Iraq:location-GPE
.:O