With no explanation, label each line with "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Some
Mac
OS
9
applications
do
not
run
well
in
Classic
.
Some:O
Mac:product-software
OS:product-software
9:product-software
applications:O
do:O
not:O
run:O
well:O
in:O
Classic:O
.:O