With no explanation, label each line with "O", "other-medical", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
A
physician
may
apply
cocaine
in
the
few
countries
that
allow
it
for
medical
use
.
A:O
physician:O
may:O
apply:O
cocaine:other-medical
in:O
the:O
few:O
countries:O
that:O
allow:O
it:O
for:O
medical:O
use:O
.:O