| http://www.w3.org/ns/prov#value | - selected from alkyl and alkenyl groups having up to 5 carbon atoms, R7 is an aliphatic group of up to 8 carbon atoms or aromatic group of up to 8 carbon atoms, R3 is an alkylene group having 1 to 6 carbon atoms and up to one catenary oxygen in the group, and Z is a heterocyclic group of the formula: ##STR24## wherein X is a divalent group required to complete a 5-membered heterocyclic ring and is
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