With no explanation, label each line with "product-airplane", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
factory
developed
a
number
of
aircraft
that
were
designed
by
Blackburn
Aircraft
and
built
under
license
,
like
the
two-seat
torpedo
carrier
,
T3A
Velos
and
the
KEA
Chelidon
,
as
well
as
the
Armstrong
Whitworth
Atlas
and
the
Avro
504
.
The:O
factory:O
developed:O
a:O
number:O
of:O
aircraft:O
that:O
were:O
designed:O
by:O
Blackburn:organization-company
Aircraft:organization-company
and:O
built:O
under:O
license:O
,:O
like:O
the:O
two-seat:O
torpedo:O
carrier:O
,:O
T3A:product-airplane
Velos:product-airplane
and:O
the:O
KEA:product-airplane
Chelidon:product-airplane
,:O
as:O
well:O
as:O
the:O
Armstrong:product-airplane
Whitworth:product-airplane
Atlas:product-airplane
and:O
the:O
Avro:product-airplane
504:product-airplane
.:O