With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Alprazolam
is
metabolized
in
the
liver
,
mostly
by
the
enzyme
cytochrome
P450
3A4
(
CYP3A4
)
.
Alprazolam:other-chemicalthing
is:O
metabolized:O
in:O
the:O
liver:O
,:O
mostly:O
by:O
the:O
enzyme:other-chemicalthing
cytochrome:other-chemicalthing
P450:other-chemicalthing
3A4:other-chemicalthing
(:O
CYP3A4:other-chemicalthing
):O
.:O