http://www.w3.org/ns/prov#value | - HR3 groups; R3 is hydrogen or alkyl or R3 taken together with G and with the nitrogen to which they are both attached forms a heterocyclic group; each Y is independently an alkylene, aralkylene, or a combination thereof; n is independently an integer of 0 to 1500; p is an integer of 1 to 10; and r is a number greater than 2.
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