conversations.from: human
conversations.value: Brandon sold 86 geckos last year. He sold twice that many the year before. How many geckos has Brandon sold in the last two years?
  Can you solve this problem?
conversations.from: assistant
conversations.value: Last year: 86 geckos
  2 years ago: 86(2)=172
  Total number of geckos sold 86+172=258 geckos