prompt: There are 516 cars in a parking lot. One-third are blue, one-half are red, and the rest are black. How many black cars are on the lot?
messages.content: There are 516 cars in a parking lot. One-third are blue, one-half are red, and the rest are black. How many black cars are on the lot?
messages.role: user
messages.content: Blue = 516 * (1/3) = <<516*(1/3)=172>>172 cars
  Red = 516 * (1/2) = <<516*(1/2)=258>>258
  Black = 516 - (172 + 258) = 86
  There are 86 black cars on the lot.
  #### 86
messages.role: assistant