With no explanation, label each line with "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Modifications
to
the
XP5Y-1
(
such
as
provision
of
air
conditioning
and
pressurisation
)
produced
the
Convair
R3Y
Tradewind
,
which
was
to
become
the
only
aircraft
using
the
T40
to
actually
enter
service
.
Modifications:O
to:O
the:O
XP5Y-1:product-airplane
(:O
such:O
as:O
provision:O
of:O
air:O
conditioning:O
and:O
pressurisation:O
):O
produced:O
the:O
Convair:product-airplane
R3Y:product-airplane
Tradewind:product-airplane
,:O
which:O
was:O
to:O
become:O
the:O
only:O
aircraft:O
using:O
the:O
T40:product-airplane
to:O
actually:O
enter:O
service:O
.:O