| http://www.w3.org/ns/prov#value | - dye is distributed in regions of said substrate underlying or overlying said first metal pattern and said second metal pattern, and wherein said dye has a chemical structure represented by a member chosen from the group consisting of (1) ##STR3## and (2) ##STR4## where Y is SO3 G, (G is an alkali metal cation), or H, R1 and R2 are individually hydrogen, methyl, or ethyl, and R3 is a lower alkyl,
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