With no explanation, label each line with "organization-other", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Naval
Advisory
Group
in
February
1966
,
and
by
the
summer
of
1966
Secretary
of
Defense
Robert
S.
McNamara
authorized
the
U.S.
Navy
a
Mobile
Riverine
Force
(
MRF
)
.
Naval:O
Advisory:O
Group:O
in:O
February:O
1966:O
,:O
and:O
by:O
the:O
summer:O
of:O
1966:O
Secretary:O
of:O
Defense:O
Robert:person-politician
S.:person-politician
McNamara:person-politician
authorized:O
the:organization-other
U.S.:organization-other
Navy:organization-other
a:O
Mobile:organization-other
Riverine:organization-other
Force:organization-other
(:O
MRF:organization-other
):O
.:O