Read the following information carefully to answer these questions.
U, V, W, X, Y and Z are members of a family. There are two married couples. V is a management expert and is the father of Y. Z is the grandfather of W and is a politician. X is the grandmother of Y and is a judge. W's mother is an advocate. There is one management expert, one politician, one advocate, one judge and two athletes in the family.
Which of the following are married couples?