| http://www.w3.org/ns/prov#value | - the production of 1 kg of the meat, and the quantity of meat that feeds only two persons can be obtained at the surface as big as 5 football fields, i.e. 25 acres, or, alternatively, a quantity of corn that feeds 10 persons, a quantity of grain that feeds 24 persons, or a quantity of soy that feeds 61 person.
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