A piece of potato is submerged in a rectangular parallelepiped glass container with a length of 3 cm, a width of 2 cm, and a height of 4 cm. The water level rises by 0.5 cm. What is the volume of the potato?
把一块土豆浸没在一个长3cm、宽2cm、高4cm的长方体玻璃容器里，水面上升了0.5cm，这块土豆的体积是多少．
<gadget id="calculator">3 * 2 * 0.5</gadget>
<output>3</output>

<result>3</result>