In the United States, ethanol is used primarily in the Midwest, where excess corn can be distilled into fuel.
(ethanol; is used; L:primarily in the Midwest; L:In the United States) (excess corn; can be distilled; into fuel; L:the Midwest)
ethanol excess corn
is used can be distilled
L:primarily in the Midwest L:In the United States
into fuel L:the Midwest