With no explanation, label each line with "O", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
holder
of
the
office
was
,
for
a
significant
period
,
the
``
de
facto
''
most
influential
politician
in
the
Socialist
Republic
of
Montenegro
,
a
constituent
republic
of
Yugoslavia
.
The:O
holder:O
of:O
the:O
office:O
was:O
,:O
for:O
a:O
significant:O
period:O
,:O
the:O
``:O
de:O
facto:O
'':O
most:O
influential:O
politician:O
in:O
the:O
Socialist:organization-government/governmentagency
Republic:organization-government/governmentagency
of:organization-government/governmentagency
Montenegro:organization-government/governmentagency
,:O
a:O
constituent:organization-government/governmentagency
republic:organization-government/governmentagency
of:organization-government/governmentagency
Yugoslavia:organization-government/governmentagency
.:O