| http://www.w3.org/ns/prov#value | - tuted heteroaromatic moiety having 2 to 24 carbon atoms or a substituted or unsubstituted cycloalkylene moiety having 5 to 30 carbon atoms, a substituted or unsubstituted alkylene moiety having 2 to 20 carbon atoms, each Y1 and Y2 independently is a covalent bond, OCO, N???N, CH???N, C???C, CO, O, S, SO2, O(CO)O, OCS, CH2 --O, CH2 --S, ##STR10## each L1 and L2 independently is a hydrogen, an alkyl
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