With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1189
,
he
became
the
``
de
facto
''
Earl
of
Pembroke
through
his
marriage
to
Isabel
de
Clare
,
though
the
title
of
Earl
would
not
be
officially
granted
until
1199
during
the
second
creation
of
the
.
In:O
1189:O
,:O
he:O
became:O
the:O
``:O
de:O
facto:O
'':O
Earl:O
of:O
Pembroke:O
through:O
his:O
marriage:O
to:O
Isabel:person-other
de:person-other
Clare:person-other
,:O
though:O
the:O
title:O
of:O
Earl:O
would:O
not:O
be:O
officially:O
granted:O
until:O
1199:O
during:O
the:O
second:O
creation:O
of:O
the:O
.:O