B is married to A and they have a child C, making B the mother of C.

A is the husband of C as they are the parents of B.

B is the brother of D as they share the same parent, C.

F is the son of G, making G the grandfather of D.

D is the sister of E, and since E is the brother of F, D is also the sister of F.

G and I are siblings as they share the same parents, H.

H is the sister of I, and since I is the mother of J, H is the aunt of J.

J is the wife of L as they are the parents of K.

M is the father of O, making M the father of N's father.

O is the father of Q, and since Q is the sister of R, O is also the father of R.

P is the aunt of R as well, since R and Q are siblings.

S is the sister of U as they share the same parents, T.

T is the son of V, making V the grandfather of S.

V is the mother of X as she is the wife of X's father, W.

X is the sister of Y, and since Y is the brother of Z, X is also the sister of Z.

Y is the sister of Z, making her A's daughter as well.

A is the father of B, and B is the mother of D, making A the grandfather of D.

M is the daughter of N, making N the grandmother of K.

M is the brother of N, and since N is the father of O, M is the uncle of O.

R is the daughter of S, making S the grandmother of P.