With no explanation, label each line with "product-other", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Apple
used
a
number
of
C
&
amp
;
T
controllers
in
their
PowerBook
line
.
Apple:organization-company
used:O
a:O
number:O
of:O
C:O
&:O
amp:O
;:O
T:O
controllers:O
in:O
their:O
PowerBook:product-other
line:O
.:O