One watermelon is equal to two pineapples, one pineapple is equal to four apples, one apple is equal to two oranges, and one watermelon is equal to how many oranges?
一只西瓜的重量等于两个菠萝的重量，一个菠萝的重量等于4个苹果的重量，一个苹果的重量等于两个橘子的重量，一只西瓜的重量等于几个橘子的重量？
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<result>16</result>