With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
As
maintenance
therapy
,
long-acting
injectable
risperidone
is
effective
for
the
prevention
of
manic
episodes
but
not
depressive
episodes
.
As:O
maintenance:O
therapy:O
,:O
long-acting:O
injectable:O
risperidone:O
is:O
effective:O
for:O
the:O
prevention:O
of:O
manic:O
episodes:O
but:O
not:O
depressive:O
episodes:O
.:O