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 ":".
KCNE2
protein
is
most
readily
detected
in
the
choroid
plexus
epithelium
,
at
the
apical
side
.
KCNE2:other-biologything
protein:O
is:O
most:O
readily:O
detected:O
in:O
the:O
choroid:O
plexus:O
epithelium:O
,:O
at:O
the:O
apical:O
side:O
.:O