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 ":".
Norepinephrine
also
stimulates
serotonin
release
by
binding
α1-adrenergic
receptors
located
on
serotonergic
neurons
in
the
raphe
.
Norepinephrine:other-chemicalthing
also:O
stimulates:O
serotonin:other-chemicalthing
release:O
by:O
binding:O
α1-adrenergic:other-chemicalthing
receptors:O
located:O
on:O
serotonergic:O
neurons:O
in:O
the:O
raphe:O
.:O