With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
sole
prototype
was
the
largest
four-engine
biplane
the
U.S.
Navy
ever
procured
,
with
a
wingspan
of
112
feet
.
This:O
sole:O
prototype:O
was:O
the:O
largest:O
four-engine:O
biplane:O
the:O
U.S.:organization-other
Navy:organization-other
ever:O
procured:O
,:O
with:O
a:O
wingspan:O
of:O
112:O
feet:O
.:O