With no explanation, label each line with "location-GPE", "O", "organization-government/governmentagency", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
On
September
9
,
2008
,
Bill
Clinton
was
named
as
the
next
chairman
of
the
National
Constitution
Center
in
Philadelphia
,
Pennsylvania
.
On:O
September:O
9:O
,:O
2008:O
,:O
Bill:person-politician
Clinton:person-politician
was:O
named:O
as:O
the:O
next:O
chairman:O
of:O
the:O
National:organization-government/governmentagency
Constitution:organization-government/governmentagency
Center:organization-government/governmentagency
in:O
Philadelphia:location-GPE
,:O
Pennsylvania:location-GPE
.:O