With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
addition
,
a
rapid
negative
feedback
loop
in
the
RAF-MEK-ERK
pathway
was
discovered
using
pulsatile
activation
of
a
photoswitchable
RAF
engineered
with
photodissociable
Dronpa
domains
.
In:O
addition:O
,:O
a:O
rapid:O
negative:O
feedback:O
loop:O
in:O
the:O
RAF-MEK-ERK:other-biologything
pathway:O
was:O
discovered:O
using:O
pulsatile:O
activation:O
of:O
a:O
photoswitchable:O
RAF:other-biologything
engineered:O
with:O
photodissociable:O
Dronpa:O
domains:O
.:O