conversations.from: human
conversations.value: Find the answer to this math problem: There are 20 boys and 11 girls in the second grade and twice that number in the third grade. How many students are in grades 2 and 3?
conversations.from: assistant
conversations.value: There are 20 + 11 = 31 students in second grade.
  There are 31 x 2 = 62 students in third grade.
  In total, there are 31 + 62 = 93 students.