With no explanation, label each line with "location-GPE", "O", "location-other", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
He
became
headmaster
of
Brentwood
School
,
Essex
,
in
1748
,
before
leaving
in
1753
to
become
vicar
of
St
George
's
,
Liverpool
.
He:O
became:O
headmaster:O
of:O
Brentwood:organization-education
School:organization-education
,:O
Essex:location-GPE
,:O
in:O
1748:O
,:O
before:O
leaving:O
in:O
1753:O
to:O
become:O
vicar:O
of:O
St:location-other
George:location-other
's:location-other
,:O
Liverpool:location-GPE
.:O