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 ":".
In
2007
,
he
was
appointed
Professor
of
Gastrointestinal
Genetics
at
Imperial
College
,
London
.
In:O
2007:O
,:O
he:O
was:O
appointed:O
Professor:O
of:O
Gastrointestinal:O
Genetics:O
at:O
Imperial:organization-education
College:organization-education
,:O
London:location-GPE
.:O