| http://www.w3.org/ns/prov#value | - R' is --H, --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.2 H.sub.7 or --C.sub.2 H.sub.4 OH; R is -H, or a non-terminal alkenyl of about 7 to 22 carbon atoms; and m is 2-6; provided that when R is an alkenyl and X is --OH or --COOH, at least one double bond is
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