| http://www.w3.org/ns/prov#value | - The term ???substituted??? as in ???substituted hydrocarbyl,??? ???substituted aryl,??? ???substituted alkyl,??? and the like, means that in the group in question (i.e., the hydrocarbyl, alkyl, aryl or other moiety that follows the term), at least one hydrogen atom bound to a carbon atom is replaced with one or more substituent groups such as hydroxy, alkoxy, alkylthio, phosphino, amino, halo, sil
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