With no explanation, label each line with "organization-other", "event-attack/battle/war/militaryconflict", "O", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
ZSU-57-2
first
saw
major
use
in
the
Vietnam
War
by
the
Vietnam
People
's
Army
(
VPA
)
,
in
the
beginning
of
the
Easter
Offensive
in
1972
.
The:O
ZSU-57-2:product-weapon
first:O
saw:O
major:O
use:O
in:O
the:O
Vietnam:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
by:O
the:O
Vietnam:organization-other
People:organization-other
's:organization-other
Army:organization-other
(:O
VPA:organization-other
):O
,:O
in:O
the:O
beginning:O
of:O
the:O
Easter:event-attack/battle/war/militaryconflict
Offensive:event-attack/battle/war/militaryconflict
in:O
1972:O
.:O