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
Type
138B
was
used
as
a
ground
instructional
trainer
instead
,
and
accordingly
never
flew
.
The:O
Type:product-airplane
138B:product-airplane
was:O
used:O
as:O
a:O
ground:O
instructional:O
trainer:O
instead:O
,:O
and:O
accordingly:O
never:O
flew:O
.:O