With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
In
Soviet
service
,
the
man-portable
version
was
deployed
as
part
of
the
anti-tank
platoon
of
motor
rifle
battalions
.
In:O
Soviet:O
service:O
,:O
the:O
man-portable:O
version:O
was:O
deployed:O
as:O
part:O
of:O
the:O
anti-tank:O
platoon:O
of:O
motor:O
rifle:O
battalions:O
.:O