With no explanation, label each line with "product-airplane", "O", "organization-company", "building-airport", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
Commandos
from
the
National
Security
Guard
(
NSG
)
rescued
all
141
hostages
of
the
Indian
Airlines
Boeing
737
,
on
the
ground
at
Amritsar
airport
.
Commandos:O
from:O
the:O
National:organization-government/governmentagency
Security:organization-government/governmentagency
Guard:organization-government/governmentagency
(:O
NSG:organization-government/governmentagency
):O
rescued:O
all:O
141:O
hostages:O
of:O
the:O
Indian:organization-company
Airlines:organization-company
Boeing:product-airplane
737:product-airplane
,:O
on:O
the:O
ground:O
at:O
Amritsar:building-airport
airport:building-airport
.:O