Direction: Study the given information carefully and answer the following questions.

Seven persons – Aksa, Dia, John, Liden, Gyan, Nitin and Ria consists of a family of three generations such that there are three males and two married couples in the family. Gyan is the son of Liden. John is the father of Aksa, who is the sister of Gyan. Gyan is the brother-in-law of Dia, who is sister of Ria. Nitin is the son of Ria, who is the only daughter-in-law of Liden.