With no explanation, label each line with "location-GPE", "O", "organization-politicalparty", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Veltroni
officially
presented
his
candidacy
for
the
leadership
of
the
Democratic
Party
at
a
rally
in
Turin
on
27
June
2007
.
Veltroni:person-politician
officially:O
presented:O
his:O
candidacy:O
for:O
the:O
leadership:O
of:O
the:O
Democratic:organization-politicalparty
Party:organization-politicalparty
at:O
a:O
rally:O
in:O
Turin:location-GPE
on:O
27:O
June:O
2007:O
.:O