conversations.from: human
conversations.value: Solve the following math problem: Bill and Phil are firehouse Dalmatians. Bill has one less than twice as many spots as Phil. If they have 59 spots combined, how many spots does Bill have?
conversations.from: assistant
conversations.value: If b is the number of spots Bill has and p is the number of spots Phil has, we know that b + p = 59. We also know that b = 2p - 1.
  We can substitute the second equation into the first equation to get: 2p - 1 + p = 59
  Combining like terms, we get 3p - 1= 59
  Adding 1 to both sides, we get 3p = 60
  Dividing both sides by 3, we get p = 20
  Substituting this back into the equation b = 2p - 1, we get b = 2*20 - 1 = 40 - 1 = 39