In a certain code language,
A < B means ‘A is the son of B’,
A + B means ‘A is the father of B’,
A ; B means ‘ A is the sister of B’, and
A = B means ‘A is the daughter of B’.
How is P related to E if 'P + O < S ; T = E’?
1
Father's sister
2
Sister's son
3
Daughter's husband
4
Mother's sister