With no explanation, label each line with "O", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Since
2011
,
Sorbonne
University
has
celebrated
its
graduates
in
a
formal
ceremony
where
every
PhD
graduate
wears
a
scholar
's
uniform
.
Since:O
2011:O
,:O
Sorbonne:organization-education
University:organization-education
has:O
celebrated:O
its:O
graduates:O
in:O
a:O
formal:O
ceremony:O
where:O
every:O
PhD:O
graduate:O
wears:O
a:O
scholar:O
's:O
uniform:O
.:O