prompt: There are 9 boys and 12 girls in a class. The teacher needs to create groups with three members for their class activity. How many groups are formed?
messages.content: There are 9 boys and 12 girls in a class. The teacher needs to create groups with three members for their class activity. How many groups are formed?
messages.role: user
messages.content: There are 9 + 12 = <<9+12=21>>21 students in a class.
  Hence, 21/3 = <<21/3=7>>7 groups are formed.
  #### 7
messages.role: assistant