The weight of 1 monkey is equivalent to the weight of 8 rabbits, the weight of 1 rabbit is equivalent to the weight of 2 cats, and the weight of 1 monkey is equivalent to the weight of how many cats.
1只猴的重量相当于8只兔的重量，1只兔的重量相当于2只猫的重量，1只猴的重量相当于多少只猫的重量．
<gadget id="calculator">2 * 8</gadget>
<output>16</output>

<result>16</result>