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 ":".
Larger
groups
of
subunits
can
also
be
specified
,
like
α3β3-hexamer
and
c-ring
.
Larger:O
groups:O
of:O
subunits:O
can:O
also:O
be:O
specified:O
,:O
like:O
α3β3-hexamer:other-biologything
and:O
c-ring:other-biologything
.:O