| http://www.w3.org/ns/prov#value | - onstituting said oxo group; (e) an aliphatic carboxylic acid compound of formula (III) ##STR21## wherein R3 represents a straight chain or branched chain alkyl group or alkenyl group having 12 or more carbon atoms, X represents an oxygen atom or a sulfur atom, and p is an integer of 1 or 2; (f) an aliphatic carboxylic acid compound of formula (IV): ##STR22## wherein R4, R5 and R6 each represent hy
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