| http://www.w3.org/ns/prov#value | - The choice of the latter may be made from strong acids, strong bases, alkali metal hydrides, alkali metal alcoholates or those of other metals such as titanium, zinc (titanate, etc.), alkali metal chlorites or hypochlorites, phosphites, hypophosphites, sulfites, hyposulfites or those of other metals or the acid forms where these exist, butylated hydroxytoluene, butylated hydroxyanisole, citrates,
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