SSC CPO 9 Nov 2022 Shift 2 Paper

‘R = S’ means ‘R is the mother of S’.
‘R @ S’ means ‘R is the father of S’.
'R × S’ means ‘R is the father’s sister of S’.
‘R # S’ means ‘R is the sister of S’.
‘R $\mathrm{\$}$ S’ means ‘R is the daughter of S’.
‘R * S’ means ‘R is the brother ofS’.
How is Z related to Y in the following expression?
V × Y $\mathrm{\$}$ X   @ W * A $\mathrm{\$}$ Z