set wiki:
ay stand for:Secure electronic transaction, a protocol used for credit card processing,Simulated Emergency Test, an Amateur radio training exercise,Society for the Eradication of TelevisionSouth Eastern Trains, a public-owned rail company operating in South East EnglandStock Exchange of Thailand, a national stock exchange of ThailandSET Index, an index for Stock Exchange of ThailandStudy of Exceptional Talent, a program for profoundly gifted students
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black wiki:
>This article is about the color black; for other uses, see Black (disambiguation). Black is a color with several subtle differences in meaning.
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