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 ":".
From
the
above
sequence
we
can
see
that
Cdc6
and
Cdt1
fulfill
the
role
of
licensing
factors
.
From:O
the:O
above:O
sequence:O
we:O
can:O
see:O
that:O
Cdc6:other-biologything
and:O
Cdt1:other-biologything
fulfill:O
the:O
role:O
of:O
licensing:O
factors:O
.:O