| http://www.w3.org/ns/prov#value | - Examples to be taken into consideration include aliphatic and/or aromatic diols with 2 to 4, preferably 2 to 6, carbon atoms such as propylene glycol, 1,5-pentanediol, 1,6-hexanediol, and preferably ethylene glycol, 1,4-butanediol and bis-(2-hydroxyethyl)-hydroquinone; diamines such as ethylenediamine and possibly 3,3'-disubstituted 4,4'-diaminodiphenyl methanes, ethanolamines such as triethanolam
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