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 ":".
The
two
actin
-binding
sites
are
conserved
in
the
three
calponin
isoforms
.
The:O
two:O
actin:other-biologything
-binding:O
sites:O
are:O
conserved:O
in:O
the:O
three:O
calponin:O
isoforms:O
.:O