prov:value
| - t, methyl green, erythrosine B, basic fuchsine, malachito green, oil red, m-cresol purple, rhodamine B, auramine, 4-p-diethylaminophenylacetanilide, and the like, are examples of color-changing agents capable of changing from the colored state to the colorless state or from a certain color to a different color.
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