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 ":".
The
UH-1
has
a
metal
fuselage
of
semi-monocoque
construction
with
tubular
landing
skids
and
two
rotor
blades
on
the
main
rotor
.
The:O
UH-1:product-airplane
has:O
a:O
metal:O
fuselage:O
of:O
semi-monocoque:O
construction:O
with:O
tubular:O
landing:O
skids:O
and:O
two:O
rotor:O
blades:O
on:O
the:O
main:O
rotor:O
.:O