With no explanation, label each line with "location-GPE", "O", "event-disaster", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Ilger
was
related
in
some
way
to
Roger
Bigod
,
sheriff
of
Norfolk
,
whose
son
William
was
a
victim
of
the
White
Ship
disaster
.
Ilger:person-other
was:O
related:O
in:O
some:O
way:O
to:O
Roger:person-other
Bigod:person-other
,:O
sheriff:O
of:O
Norfolk:location-GPE
,:O
whose:O
son:O
William:person-other
was:O
a:O
victim:O
of:O
the:event-disaster
White:event-disaster
Ship:event-disaster
disaster:event-disaster
.:O