| http://www.w3.org/ns/prov#value | - y combination of R3, L1, M1, R8, R9, R10, and/or R11 shall contain at least one acidic moiety selected from or containing a carboxylic acid, a tetrazole, or a moiety of the formulae: ???C(O)???NH2, ???(CH2)n???C(O)???NH2, n is an integer from 0 to 3;
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