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 ":".
Piper
Warrior
III
aircraft
were
purchased
in
the
summer
of
2004
with
glass
panels
for
primary
training
as
well
as
instrument
and
flight
instructor
courses
.
Piper:product-airplane
Warrior:product-airplane
III:product-airplane
aircraft:O
were:O
purchased:O
in:O
the:O
summer:O
of:O
2004:O
with:O
glass:O
panels:O
for:O
primary:O
training:O
as:O
well:O
as:O
instrument:O
and:O
flight:O
instructor:O
courses:O
.:O