| http://www.w3.org/ns/prov#value | - Though the fuel substance may be described in the illustrative embodiment as methanol, the invention is not limited thereto, and instead the ???fuel substance??? used in the fuel cell system described shall include a carbonaceous fuel substantially comprised of alcohols such as methanol and ethanol, alcohol precursors, dimethyloxymethan, methyloformate, or combinations thereof and aqueous solution
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