| http://www.w3.org/ns/prov#value | - unsubstituted alkyl chain having from 1 to about 10 (preferably from about 1 to about 4) carbon atoms and where y is an integer from 2 to about 10 (preferably 2 or 3) and z is an integer from 1 to 30 (preferably from 2 to about 5); the group ???C(O)R4 where each R4 is selected from the alkyl; alkaryl; aralkyl; hydroxyalkyl; polyhydroxyalkyl, polyalkylether, and alkyl groups substituted with one (p
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