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 ":".
It
is
composed
of
a
single
origin
recognition
complex
(
ORC
)
protein
,
Cdc6
/
ORC1
,
and
a
homohexamer
of
the
minichromosome
maintenance
(
MCM
)
protein
.
It:O
is:O
composed:O
of:O
a:O
single:O
origin:O
recognition:O
complex:O
(:O
ORC:other-biologything
):O
protein:O
,:O
Cdc6:other-biologything
/:O
ORC1:other-biologything
,:O
and:O
a:O
homohexamer:O
of:O
the:O
minichromosome:O
maintenance:O
(:O
MCM:other-biologything
):O
protein:O
.:O