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Baldness : Hair

Rung is related to ladder in the same way twig is related to........

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Virology : Virus : : Semantics : ?

Highbrow is related to Cultivated in the same way as Suave is related to

Choose the correct alternative for the word belongs to the same group.

Marble : Slate : Gneiss

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Groundnuts : Sesame : Mustard