Insomnia is to lead as minamata is to.............

Choose the correct alternative for the given relation.

Appointment : Ability

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$THEREFORE$ is to $TEEOERFRH$ as $HELICOPTER$ is to........?

Bhakra is to Sutlej as Aswan is to

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

Shark : Cod : Eel

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Protagonist : Character