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 ":".
Ketamine
is
likely
to
be
most
beneficial
for
surgical
patients
when
severe
post-operative
pain
is
expected
and
for
opioid-tolerant
patients
.
Ketamine:other-medical
is:O
likely:O
to:O
be:O
most:O
beneficial:O
for:O
surgical:O
patients:O
when:O
severe:O
post-operative:O
pain:O
is:O
expected:O
and:O
for:O
opioid-tolerant:O
patients:O
.:O