With no explanation, label each line with "O", "organization-religion", "person-scholar", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
According
to
Hsueh-li
Cheng
,
``
Zen
masters
such
as
Niu-t'ou
fa-yung
(
594-657
)
and
Nan-ch'uan
P
'
u-yuan
(
748-
834
)
were
San-Iun
Buddhists
before
they
became
Zen
masters
.
''
According:O
to:O
Hsueh-li:person-scholar
Cheng:person-scholar
,:O
``:O
Zen:person-other
masters:O
such:O
as:O
Niu-t'ou:person-scholar
fa-yung:person-scholar
(:O
594-657:O
):O
and:O
Nan-ch'uan:person-scholar
P:person-scholar
':person-scholar
u-yuan:person-scholar
(:O
748-:O
834:O
):O
were:O
San-Iun:O
Buddhists:organization-religion
before:O
they:O
became:O
Zen:O
masters:O
.:O
'':O