What was the question for this implicit rationale, and corresponding answer?
The relevant information is: The fourth player in the batting order is known as the cleanup hitter, also known as the cleanup spot and in modern baseball is almost always one of the best hitters on the team, often the one with the most power and ability to drive in runs with extra-base hits (double, triple, or home run).
The answer: The fourth player in the batting order
The question: The fourth player in the batting order is known as the cleanup hitter, also known as the cleanup spot and in modern baseball is almost always one of the best hitters on the team, often the one with the most power and ability to drive in runs with extra-base hits (double, triple, or home run). Baseball managers tend to place hitters who are most likely to reach base ahead of the clean-up man, so that the fourth batter can "clean" the bases by driving these baserunners home to score runs. His main goal is to drive in runs, although he is expected to score runs as well. Hitting cleanup requires an exceptional level of talent, and the ability to deliver big hits in important situations (such as the bases loaded with two out). Examples of # 4 hitters include Lou Gehrig, Eddie Mathews, Willie McCovey, Billy Williams, Tony Perez, Eddie Murray, Daniel Murphy, Alex Rodriguez, Prince Fielder, David Ortiz, Edgar Martinez, and Ryan Howard.

Answer this question: what is the clean up hitter in baseball?