conversations.from: human
conversations.value: Greta, George and Gloria entered their turtles in the Key West Turtle Race.  Greta’s turtle finished the race in 6 minutes.  George’s turtle finished 2 minutes quicker than Greta’s.  Gloria’s turtle took twice as long as George’s turtle.  How long did it take Gloria’s turtle to finish the race?
conversations.from: assistant
conversations.value: George’s turtle finished 2 minutes quicker than Greta’s so 6-2 = 4 minutes to finish
  Gloria’s turtle took twice as long as George’s turtle, who finished in 4 minutes so 2*4 = 8 minutes