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Digitized four relationship terms from images:
Father's sister
Mother's mother
Mother's sister
Father's mother
Mother's sister
Break the expression into individual relations (A+B=sister, A-B=wife, A*B=father, A/B=brother) and map the generations top-down.
Break the expression into individual relations (A+B=sister, A-B=wife, A*B=father, A/B=brother) and map the generations top-down.
Analyze the expression
The expression is P + Q - R ├Ч S ├╖ T. Break it down using the given definitions: P + Q means P is the sister of Q; Q - R means Q is the wife of R; R ├Ч S means R is the father of S; S ├╖ T means S is the brother of T.
Establish the relationships
Since Q is the wife of R, and R is the father of S and T, Q is the mother of S and T. Since P is the sister of Q, P is the maternal aunt of S and T.
Identify P's relation to T
P is the sister of T's mother (Q). Therefore, P is T's mother's sister.
A: Father's sister is incorrect as P is related to the mother's side. B: Mother's mother is incorrect as P is the same generation as the mother. D: Father's mother is incorrect as P is the same generation as the mother.
C is correct because P is the sister of Q, and Q is the mother of T, making P the mother's sister of T.
In coded blood relations, always draw the family tree to avoid confusion between maternal and paternal sides, especially when spouse relationships are involved.
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