With no explanation, label each line with "location-GPE", "O", "event-other", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Based
on
this
research
,
the
Campaign
in
January–March
2018
produced
``
Emperor
Norton
at
200
``
,
a
6-week
series
of
talks
,
exhibits
and
special
events
in
San
Francisco
celebrating
the
Norton
bicentennial
.
Based:O
on:O
this:O
research:O
,:O
the:O
Campaign:O
in:O
January–March:O
2018:O
produced:O
``:O
Emperor:event-other
Norton:event-other
at:event-other
200:event-other
``:O
,:O
a:O
6-week:O
series:O
of:O
talks:O
,:O
exhibits:O
and:O
special:O
events:O
in:O
San:location-GPE
Francisco:location-GPE
celebrating:O
the:O
Norton:person-politician
bicentennial:O
.:O