blood relations

Consider the relationships among P, Q, R, S, and T: * P is the brother of Q. * S is the daughter of Q. * T is the sister of S. * R is the mother of Q. The following statements are...

Consider the relationships among $P, Q, R, S$, and $T$ : $\bullet$ $P$ is the brother of $Q$. $\bullet$ $S$ is the daughter of $Q$. $\bullet$ $T$ is the sister of $S$. $\bullet$ $R...