Increased use of ethanol would require conversion of additional land to grow the corn to be converted into fuel, and the process of conversion is itself energy intensive.
(Increased use of ethanol; would require; conversion of additional land) (the corn; to be converted; into fuel) (the process of conversion; is intensive; itself)
Increased use of ethanol the corn the process of conversion
would require to be converted is intensive
conversion of additional land
into fuel
itself