A circular flower bed, the circumference of the flower bed is 15.7 meters, what is the diameter of the flower bed?
一个圆形花坛，花坛的周长是15.7米，这个花坛的直径是多少？
<gadget id="calculator">15.7 / 3.14</gadget>
<output>5</output>

<result>5</result>