{HEAD ~ Equipment} that is useful for illuminating {TAIL ~ the dye compounds} of the invention includes, but is not limited to, hand held ultraviolet lamps, mercury arc lamps, xenon lamps, lasers and laser diodes 
is useful for illuminating
{ HEAD ~ Equipment } that is useful for illuminating { TAIL ~ the dye compounds } of the invention includes , but is not limited to , hand held ultraviolet lamps , mercury arc lamps , xenon lamps , lasers and laser diodes
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