| http://www.w3.org/ns/prov#value | - The carboxylic acid may be a monocarboxylic acid containing from 1 to 7 carbon atoms such as from 1 to 5 carbon atoms, chosen, for example, from acetic acid, n-propanoic acid, isopropanoic acid, n-butanoic acid, isobutanoic acid, tert-butanoic acid, n-pentanoic acid, and benzoic acid.
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