Blood Relations

A told B, "The girl I met yesterday was the youngest daughter of the brother-in-law of my friend's mother." How is the girl related to A's friend?

A man pointing to a photograph says, "The lady in the photograph is my nephew's maternal grandmother." How is the lady in the photograph related to the man's sister who has no other sister?

A's mother's father is the husband of B's mother. How is A related to B, if A and B are both male?

If X φ Y means X is the wife of Y, X $ Y means X is the son of Y and X Ψ Y means X is the sister of Y, which of the following would mean that A is the daughter of B ?