With no explanation, label each line with "location-GPE", "O", "organization-company", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Whateley
joined
the
Auxiliary
Territorial
Service
in
1938
and
became
a
junior
officer
following
training
at
Chelsea
Barracks
.
Whateley:person-other
joined:O
the:O
Auxiliary:organization-company
Territorial:organization-company
Service:organization-company
in:O
1938:O
and:O
became:O
a:O
junior:O
officer:O
following:O
training:O
at:O
Chelsea:location-GPE
Barracks:location-GPE
.:O