| http://www.w3.org/ns/prov#value | - wherein U represents a hydrocarbon group, especially aliphatic hydrocarbon group, being free from an ethylenic unsaturated double bond and preferably containing 3 to 12 carbon atoms, n is an integer of at least 2, preferably up to 6, more preferably 2 to 4, and r is an integer of at least one, preferably not more than 4.
|
