With no explanation, label each line with "location-GPE", "O", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Remington
Model
8
rifle
was
the
first
commercially
successful
semiautomatic
rifle
offered
for
civilian
sale
in
the
United
States
.
The:O
Remington:product-weapon
Model:product-weapon
8:product-weapon
rifle:O
was:O
the:O
first:O
commercially:O
successful:O
semiautomatic:O
rifle:O
offered:O
for:O
civilian:O
sale:O
in:O
the:O
United:location-GPE
States:location-GPE
.:O