With no explanation, label each line with "organization-company", "O", "person-scholar", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Tisdale
spent
33
years
as
a
researcher
at
the
Wellcome
Research
Laboratories
,
GlaxoWellcome
and
GlaxoSmithKline
,
where
she
eventually
became
head
of
clinical
virology
.
Tisdale:person-scholar
spent:O
33:O
years:O
as:O
a:O
researcher:O
at:O
the:O
Wellcome:organization-other
Research:organization-other
Laboratories:organization-other
,:O
GlaxoWellcome:organization-company
and:O
GlaxoSmithKline:organization-company
,:O
where:O
she:O
eventually:O
became:O
head:O
of:O
clinical:O
virology:O
.:O