How is S related to Z?

imgsrchttpswwwixambeecomquestionimageBureauofIndianStandardsSSAJSAexam1726038664BIS2024MT11112JPGJPGalt

Question

Answer the questions based on the information given below. There are nine members (R, S, T, U, V, W, Y, X and Z) in a family, which consist of three generation and four married couples. V is son of U. R is married to T. X is married to grandson of R, who is grandfather of W. Z have 2 sons and one of them is W. U is son-in-law of Y. S is sister-in-law of V.