With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
A
Bristol
Cherub
engine
was
first
used
,
followed
by
a
Continental
A-40
.
A:O
Bristol:product-other
Cherub:product-other
engine:O
was:O
first:O
used:O
,:O
followed:O
by:O
a:O
Continental:product-other
A-40:product-other
.:O