With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
briefly
joined
them
,
but
returned
to
Memphis
and
concentrated
on
his
electrical
business
.
He:O
briefly:O
joined:O
them:O
,:O
but:O
returned:O
to:O
Memphis:location-GPE
and:O
concentrated:O
on:O
his:O
electrical:O
business:O
.:O