| http://www.w3.org/ns/prov#value | - d polypropylene glycol; polyols having alkylene of 2 to 6 carbons such as ethylene glycol, propylene glycol, butylene glycol, triethylene glycol, 1,2,6-hexanetriol, thiodiglycol, hexylene glycol, and diethylene glycol; glycerin; lower alkyl ethers of a polyhydric alcohol such as ethylene glycol monomethyl (or monoethyl) ether, and diethylene glycol methyl (or ethyl) ether; cyclic amides such as N-
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