| http://www.w3.org/ns/prov#value | - As R6 in the aforementioned formula (6), for example, alkyl group having 1 to 8, preferably 1 to 4, more preferably 1 or 2, carbon atoms, such as methyl group, ethyl group, propyl group, n-butyl group, t-butyl group, 2-ethylhexyl group and the like can be used.
|
