With no explanation, label each line with "location-GPE", "O", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
was
educated
at
a
private
school
in
Hertfordshire
,
and
,
subsequently
,
at
Trinity
College
,
Cambridge
.
He:O
was:O
educated:O
at:O
a:O
private:O
school:O
in:O
Hertfordshire:location-GPE
,:O
and:O
,:O
subsequently:O
,:O
at:O
Trinity:organization-education
College:organization-education
,:O
Cambridge:organization-education
.:O