With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Sunward
Aerospace
also
produces
a
line
of
wood
kits
which
include
a
trebuchet
,
a
catapult
,
a
ballista
and
an
elastic
powered
racer
.
Sunward:organization-company
Aerospace:organization-company
also:O
produces:O
a:O
line:O
of:O
wood:O
kits:O
which:O
include:O
a:O
trebuchet:O
,:O
a:O
catapult:O
,:O
a:O
ballista:O
and:O
an:O
elastic:O
powered:O
racer:O
.:O