conversations.from: human
conversations.value: Explain how to solve this math problem: Oxford High School has 48 teachers, 1 principal and 15 classes with each having 20 students. How many people are there in total in Oxford High School?
conversations.from: assistant
conversations.value: There are 48 teachers. There is 1 principal. There are 15 classes × 20 students/class = 300 students.
  The total number of people in Oxford High School are 300 people + 48 people + 1 people = 349 people.