In a family, there are four members: P, Q, R, and S. P is the father of Q. R is the mother of Q. S is the sister of Q. If R is a teacher, what is the relationship of S to P?
In a group of five friends: Alice, Bob, Charlie, David, and Eva, Alice is taller than Bob but shorter than Charlie. David is shorter than Eva but taller than Bob. Who is the tallest among them?
In a class, there are three types of students: athletes, scholars, and artists. Athletes are known for their physical skills, scholars for their academic achievements, and artists for their creativity. Which group does not focus on academics?