With no explanation, label each line with "O", "organization-education", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Dexter
is
a
former
general
practitioner
(
GP
)
and
honorary
tutor
at
St.
George
's
Hospital
Medical
School
.
Dexter:person-other
is:O
a:O
former:O
general:O
practitioner:O
(:O
GP:O
):O
and:O
honorary:O
tutor:O
at:O
St.:organization-education
George:organization-education
's:organization-education
Hospital:organization-education
Medical:organization-education
School:organization-education
.:O