| http://www.w3.org/ns/prov#value | - A black ink, for use in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink, and the black ink, in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having (a) a good medium or good mediums for the water-insoluble coloring material and (b) a poor medium or poor mediums for t
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