conversations.from: human
conversations.value: A window has 4 glass panels each. A house has 6 double windows downstairs and 8 single windows upstairs. How many glass panels are there in the whole house?
  How to solve this?
conversations.from: assistant
conversations.value: There are 6 x 2 = 12 windows downstairs
  There are 12 + 8 = 20 windows in the whole house
  There are 20 x 4 = 80 glass panels in the whole house