| http://www.w3.org/ns/prov#value | - represents substituted or unsubstituted monovalent hydrocarbon radicals selected from among methyl, ethyl, propyl, octyl, phenyl, vinyl and trifluoropropyl groups, and m is a number such that the viscosity at 25.degree. C. is 0.5 m.sup.2 /s or less. If
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