With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
reign
of
King
Stephen
of
England
(
1096–1154
)
was
a
long
period
of
civil
unrest
commonly
known
as
``
The
Anarchy
''
.
The:O
reign:O
of:O
King:O
Stephen:person-other
of:O
England:location-GPE
(:O
1096–1154:O
):O
was:O
a:O
long:O
period:O
of:O
civil:O
unrest:O
commonly:O
known:O
as:O
``:O
The:O
Anarchy:O
'':O
.:O