| http://www.w3.org/ns/prov#value | - The compositions of the invention may also contain other ingredients such as antioxidants (for example sodium metabisulphite), chelating agents (such as edetic acid or one of its salts), preservatives (such as benzalkonium chloride, sorbic acid or one of its salts, phenylethyl alcohol and/or propyl hydroxybenzoate), sweeteners (such as saccharin or aspartame), flavorings (such as peppermint) or ot
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