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 ":".
They
can
be
found
as
globular
proteins
and
membrane
proteins
.
They:O
can:O
be:O
found:O
as:O
globular:other-biologything
proteins:other-biologything
and:O
membrane:other-biologything
proteins:other-biologything
.:O