With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1921
he
was
appointed
Ophthalmic
Surgeon
at
Cardiff
Royal
Infirmary
and
United
Cardiff
Hospitals
and
served
there
for
37
years
.
In:O
1921:O
he:O
was:O
appointed:O
Ophthalmic:O
Surgeon:O
at:O
Cardiff:organization-other
Royal:organization-other
Infirmary:organization-other
and:organization-other
United:organization-other
Cardiff:organization-other
Hospitals:organization-other
and:O
served:O
there:O
for:O
37:O
years:O
.:O