With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Principality
of
Lüneburg
emerged
alongside
the
Principality
of
Brunswick
in
1269
when
the
inheritance
of
the
Duchy
was
divided
.
The:O
Principality:location-GPE
of:location-GPE
Lüneburg:location-GPE
emerged:O
alongside:O
the:O
Principality:location-GPE
of:location-GPE
Brunswick:location-GPE
in:O
1269:O
when:O
the:O
inheritance:O
of:O
the:O
Duchy:O
was:O
divided:O
.:O