With no explanation, label each line with "location-GPE", "O", "organization-politicalparty", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
1928
,
he
moved
to
Liverpool
to
become
a
CPGB
organiser
there
.
In:O
1928:O
,:O
he:O
moved:O
to:O
Liverpool:location-GPE
to:O
become:O
a:O
CPGB:organization-politicalparty
organiser:O
there:O
.:O