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 ":".
To
map
the
neuronal
activation
of
the
brain
during
the
ejaculatory
response
,
researchers
have
studied
the
expression
of
c-Fos
,
a
proto-oncogene
expressed
in
neurons
in
response
to
stimulation
by
hormones
and
neurotransmitters
.
To:O
map:O
the:O
neuronal:O
activation:O
of:O
the:O
brain:O
during:O
the:O
ejaculatory:O
response:O
,:O
researchers:O
have:O
studied:O
the:O
expression:O
of:O
c-Fos:other-biologything
,:O
a:O
proto-oncogene:other-biologything
expressed:O
in:O
neurons:other-biologything
in:O
response:O
to:O
stimulation:O
by:O
hormones:other-biologything
and:O
neurotransmitters:other-biologything
.:O