With no explanation, label each line with "O", "product-weapon", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
United
States
Marine
Corps
,
for
example
,
recently
began
requiring
all
enlisted
personnel
and
all
officers
below
the
rank
of
Lieutenant
colonel
to
carry
the
M4
Carbine
as
their
primary
weapon
.
The:O
United:organization-other
States:organization-other
Marine:organization-other
Corps:organization-other
,:O
for:O
example:O
,:O
recently:O
began:O
requiring:O
all:O
enlisted:O
personnel:O
and:O
all:O
officers:O
below:O
the:O
rank:O
of:O
Lieutenant:O
colonel:O
to:O
carry:O
the:O
M4:product-weapon
Carbine:product-weapon
as:O
their:O
primary:O
weapon:O
.:O