With no explanation, label each line with "location-GPE", "O", "product-weapon", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
Swiss
Army
procured
the
American
M109
howitzer
instead
.
The:O
Swiss:organization-government/governmentagency
Army:organization-government/governmentagency
procured:O
the:O
American:location-GPE
M109:product-weapon
howitzer:product-weapon
instead:O
.:O