With no explanation, label each line with "O", "other-medical", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Some
drugs
,
like
tolcapone
(
a
central
COMT-inhibitor
)
,
raise
the
levels
of
all
the
catecholamines
.
Some:O
drugs:O
,:O
like:O
tolcapone:other-medical
(:O
a:O
central:O
COMT-inhibitor:other-medical
):O
,:O
raise:O
the:O
levels:O
of:O
all:O
the:O
catecholamines:other-biologything
.:O