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
L-5
carried
a
pilot
and
observer
in
a
tandem-seating
configuration
,
which
was
preferred
by
the
military
for
observation
work
.
The:O
L-5:product-airplane
carried:O
a:O
pilot:O
and:O
observer:O
in:O
a:O
tandem-seating:O
configuration:O
,:O
which:O
was:O
preferred:O
by:O
the:O
military:O
for:O
observation:O
work:O
.:O