conversations.from: human
conversations.value: I need help with this problem:
  A tower is made out of 4 blue blocks, twice as many yellow blocks, and an unknown number of red blocks. If there are 32 blocks in the tower in total, how many red blocks are there?
conversations.from: assistant
conversations.value: There are 4*2 = 8 yellow blocks in the tower.
  There are 32-4-8 = 20 red blocks in the tower.