| http://www.w3.org/ns/prov#value | - yl group), alkenyl groups (each preferably having 2 to 20 carbon atoms, more preferably 2 to 12 carbon atoms, and particularly preferably 2 to 8 carbon atoms; such as a vinyl group, an allyl group, a 2-betenyl group, a 3-pentenyl group, and a 2-cyclohexenylmethyl group), alkynyl groups (each preferably having 2 to 20 carbon atoms, more preferably 2 to 12 carbon atoms, and particularly preferably 2
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