| http://www.w3.org/ns/prov#value | - Suitable starting components having reactive hydrogen atoms include water, alcohols, ammonia and amines, such as ethylene glycol, 1,3- propylene glycol, 1,2-propylene glycol, trimethylolpropane, glycerol, sorbitol, 4,4'-dihydroxydiphenylpropane, aniline, ethanolamine and ethylenedimine.
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