With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
It
was
fitted
with
trailing
edge
flaps
on
both
the
upper
and
lower
wings
.
It:O
was:O
fitted:O
with:O
trailing:O
edge:O
flaps:O
on:O
both:O
the:O
upper:O
and:O
lower:O
wings:O
.:O