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Read the following information to answer the question.

$A\ +\ B$ means $A$ is daughter of $B$,

$A\ *\ B$ means $A$ is son of $B$ and

$A\ -\ B$ means $A$ is wife of $B$.

If $P\ *\ Q\ -\ S$, which of the following is true?

1. $S$ is wife of $Q$
2. $S$ is father of $P$
3. $P$ is daughter of $Q$
4. $Q$ is father of $P$
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