With no explanation, label each line with "product-other", "O", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
1961
,
to
gain
experience
with
``
the
BLEU
automatic
landing
system
``
the
FAA
sent
a
Douglas
DC-7
to
RAE
Bedford
for
the
system
to
be
installed
and
tested
.
In:O
1961:O
,:O
to:O
gain:O
experience:O
with:O
``:O
the:O
BLEU:product-other
automatic:product-other
landing:product-other
system:product-other
``:O
the:O
FAA:organization-government/governmentagency
sent:O
a:O
Douglas:product-other
DC-7:product-other
to:O
RAE:organization-government/governmentagency
Bedford:organization-government/governmentagency
for:O
the:O
system:O
to:O
be:O
installed:O
and:O
tested:O
.:O