With no explanation, label each line with "location-GPE", "O", "organization-education", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
When
Cosimo
decided
to
refound
Plato
's
Academy
at
Florence
he
chose
Ficino
as
its
head
.
When:O
Cosimo:person-other
decided:O
to:O
refound:O
Plato:organization-education
's:organization-education
Academy:organization-education
at:O
Florence:location-GPE
he:O
chose:O
Ficino:person-other
as:O
its:O
head:O
.:O