With no explanation, label each line with "O", "organization-religion", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Oriental
Orthodox
Churches
are
those
descended
from
those
that
rejected
the
Council
of
Chalcedon
in
451
.
The:O
Oriental:organization-religion
Orthodox:organization-religion
Churches:organization-religion
are:O
those:O
descended:O
from:O
those:O
that:O
rejected:O
the:O
Council:organization-religion
of:organization-religion
Chalcedon:organization-religion
in:O
451:O
.:O