Direction: Study the given information and answer the questions below:

In a family of three generation there are seven members -  W, S, P, D, E, I, and N. N is the mother of three children. S is the paternal aunt of P. E is the mother of P, who is the grandson of N. E has no siblings. N has one brother. D is the only brother of W. P is the nephew of W, who is the niece of I.