A + B means A is the daughter of B ;
A x B means A is the son of B and
A - B means A is the wife of B.
A + B means A is the father of B ;
A - B means A is the wife of B ;
A x B means A is the brother of B ;
A ÷ B means A is the daughter of B.
A + B means A is the daughter of B ;
A - B means A is the husband of B ;
A x B means A is the brother of B.