http://www.w3.org/ns/prov#value | - fonyl, ethylsulfonyl, phenylsulfonyl or p-methylphenylsulfonyl); an acyl group (preferably a formyl group, a substituted or unsubstituted alkylcarbonyl group having 2 to 30 carbon atoms or a substituted or unsubstituted arylcarbonyl group having 7 to 30 carbon atoms, such as acetyl, pivaloyl, 2-chloroacetyl, stearoyl, benzoyl or p-n-octyloxyphenylcarbonyl); an aryloxycarbonyl group (preferably a s
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