| http://www.w3.org/ns/prov#value | - (a) Separate chemically defined elements and compounds (except those of 3203 or 3204, inorganic products of a kind used as luminophores (3206), glass obtained from fused quartz or other fused silica in the forms provided for in 3207, and also dyes and other colouring matter put up in forms or packings for retail sale, of 3212);
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