With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Hulton
's
son
Sir
Edward
Hulton
expanded
his
father
's
newspaper
interests
and
sold
his
publishing
business
based
in
London
and
Manchester
to
Lord
Beaverbrook
and
Lord
Rothermere
when
he
retired
in
1923
.
Hulton:person-other
's:O
son:O
Sir:person-other
Edward:person-other
Hulton:person-other
expanded:O
his:O
father:O
's:O
newspaper:O
interests:O
and:O
sold:O
his:O
publishing:O
business:O
based:O
in:O
London:location-GPE
and:O
Manchester:location-GPE
to:O
Lord:O
Beaverbrook:person-other
and:O
Lord:O
Rothermere:person-other
when:O
he:O
retired:O
in:O
1923:O
.:O