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 ":".
A
selective
estrogen
receptor
degrader
or
downregulator
(
SERD
)
is
a
type
of
drug
which
binds
to
the
estrogen
receptor
(
ER
)
and
,
in
the
process
of
doing
so
,
causes
the
ER
to
be
degraded
and
thus
downregulated
.
A:O
selective:other-medical
estrogen:other-medical
receptor:other-medical
degrader:other-medical
or:other-medical
downregulator:other-medical
(:O
SERD:other-medical
):O
is:O
a:O
type:O
of:O
drug:O
which:O
binds:O
to:O
the:O
estrogen:other-biologything
receptor:other-biologything
(:O
ER:other-biologything
):O
and:O
,:O
in:O
the:O
process:O
of:O
doing:O
so:O
,:O
causes:O
the:O
ER:other-biologything
to:O
be:O
degraded:O
and:O
thus:O
downregulated:O
.:O