Choose the correct alternative for the given relation.
Editor : Magazine
Director : Film
Novel : Writer
Psychiatrist : Neurotic
Librarian : Library
Choose the correct alternative for the given relation.
$6 : 18 :\, : 4 : \,?$
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Dog : Kennel
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Dubious : Indisputable
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Mature : Regressed : : Varied : ?
Snowfall is related to precipitation in the same way grotto is related to........