With no explanation, label each line with "O", "other-chemicalthing", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Phosphorylation
of
calponin
by
a
protein
kinase
,
which
is
dependent
upon
calcium
binding
to
calmodulin
,
releases
the
calponin
's
inhibition
of
the
smooth
muscle
ATPase
.
Phosphorylation:O
of:O
calponin:other-biologything
by:O
a:O
protein:O
kinase:other-biologything
,:O
which:O
is:O
dependent:O
upon:O
calcium:other-chemicalthing
binding:O
to:O
calmodulin:other-biologything
,:O
releases:O
the:O
calponin:O
's:O
inhibition:O
of:O
the:O
smooth:O
muscle:O
ATPase:other-biologything
.:O