With no explanation, label each line with "product-car", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
BRM
's
designers
,
confident
in
their
chassis
'
rigidity
,
omitted
a
rear
bulkhead
between
the
driver
and
engine
.
BRM:product-car
's:product-car
designers:O
,:O
confident:O
in:O
their:O
chassis:O
':O
rigidity:O
,:O
omitted:O
a:O
rear:O
bulkhead:O
between:O
the:O
driver:O
and:O
engine:O
.:O