With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
BEF
Foods
remained
independently
owned
until
September
2017
when
it
was
sold
to
Post
Holdings
.
BEF:organization-company
Foods:organization-company
remained:O
independently:O
owned:O
until:O
September:O
2017:O
when:O
it:O
was:O
sold:O
to:O
Post:organization-company
Holdings:organization-company
.:O