X # Y means 'X' is the wife of 'Y',
X % Y means 'X' is the father of 'Y',
X & Y means 'X' is the daughter of 'Y',
X @ Y means 'X' is the mother of 'Y',
M @ N & O % P # Q How is M related to Q based on the position?
1
Wife
2
Mother-in-law
3
Sister
4
Mother