The weight of 2 chickens is equal to the weight of 1 rabbit, and the weight of 8 rabbits is equal to the weight of 1 sheep. The weight of 1 sheep is equal to the weight of chickens.
2只鸡的重量等于1只兔的重量，8只兔的重量等于1只羊的重量．1只羊的重量等于多少只鸡的重量．
<gadget id="calculator">2 * 1 * 8</gadget>
<output>16</output>

<result>16</result>