With no explanation, label each line with "O", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
SP
stands
for
“
Service
Pistol
”
and
both
weapons
are
full-sized
,
holster
type
pistols
of
solid
construction
.
SP:product-weapon
stands:O
for:O
“:O
Service:product-weapon
Pistol:product-weapon
”:O
and:O
both:O
weapons:O
are:O
full-sized:O
,:O
holster:O
type:O
pistols:O
of:O
solid:O
construction:O
.:O