conversations.from: human
conversations.value: If Ruby is 2 centimeters shorter than Pablo.  Pablo is 70 centimeters taller than Charlene.  Janet is 62 centimeters tall and Charlene is twice that tall.  How tall is Ruby?
conversations.from: assistant
conversations.value: Charlene is 2 * 62 cm = 124 cm tall.
  Pablo is 70 cm + 124 cm = 194 cm tall.
  Ruby is 194 cm - 2 = 192 cm tall.