In a family, there are three children: X, Y, and Z. X is the son of A and B. Y is the daughter of A and B. Z is the son of C, who is the sister of A. How is Z related to X?
In a family, there are four members: P, Q, R, and S. P is the father of Q, Q is the mother of R, and S is the sibling of R. What is the relationship between P and S?
In a family, A is married to B. They have two children, C and D. C is a doctor and D is a teacher. If A is a lawyer, what is B's profession if it is known that one parent is not working?
In a family, there are three generations: Grandfather G, his son S, and his daughter D. S has two children, A and B. If A is a doctor and B is a lawyer, what is D's relationship to A?