With no explanation, label each line with "product-food", "location-GPE", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Sauer
Company
in
Richmond
,
Virginia
purchased
the
Duke
's
products
,
and
Duke
's
Mayonnaise
became
the
company
's
flagship
product
.
Sauer:O
Company:O
in:O
Richmond:location-GPE
,:O
Virginia:location-GPE
purchased:O
the:O
Duke:organization-company
's:O
products:O
,:O
and:O
Duke:organization-company
's:O
Mayonnaise:product-food
became:O
the:O
company:O
's:O
flagship:O
product:O
.:O