| http://www.w3.org/ns/prov#value | - an alkynyl group (preferably having 2 to 30 carbon atoms, still preferably 2 to 20 carbon atoms, particularly preferably 2 to 10 carbon atoms, such as propargyl or 3-pentynyl), an aryl group (preferably having 6 to 30 carbon atoms, still preferably 6 to
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