conversations.from: human
conversations.value: Katy makes some brownies to eat throughout the week. She eats 5 on Monday and twice as many on Tuesday. After she has eaten the brownies on Tuesday, all of the brownies she made are gone. How many brownies did Katy make?
conversations.from: assistant
conversations.value: On Tuesday, Katy ate 5 brownies * 2 = 10 brownies.
  As she has eaten all of the brownies she made, she must have made 5 Monday brownies + 10 Tuesday brownies = 15 brownies.