With no explanation, label each line with "organization-other", "location-GPE", "O", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
S-300VM
``
Antey-2500
''
(
NATO
reporting
name
SA-23
Gladiator
\
Giant
)
is
a
Russian
anti-ballistic
missile
system
.
The:O
S-300VM:product-weapon
``:product-weapon
Antey-2500:product-weapon
'':product-weapon
(:O
NATO:organization-other
reporting:O
name:O
SA-23:product-weapon
Gladiator:product-weapon
\:O
Giant:product-weapon
):O
is:O
a:O
Russian:location-GPE
anti-ballistic:O
missile:O
system:O
.:O