'R' # 'P' means 'P' is the father of 'R'
'R' @ 'P' means 'R' is the husband of 'P'
'R' $ 'P' means 'R' is the mother of 'P'
'R' % 'P' means 'R' is the brother of 'P'
'R' ! 'P' means 'R' is the sister of 'P'
In this expression S $ T @ U ! V % W # X, how is T related to X?
1
Daughter
2
Father
3
Son-in-law
4
Sister