A piece of gold wire is used to make handicrafts, 2 meters are used for the first time, and the remaining half is used; 2 meters are used for the second time, and the remaining half is used. Finally, there are 2 meters left. How many meters is the original gold thread?
一根金丝用于制作工艺品，第一次用去2米，又用去余下的一半；第二次用去2米，又用去余下的一半．最后还剩2米．金丝原有多少米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / (1/2)</gadget>
<output>4</output>

<gadget id="calculator">4 + 2</gadget>
<output>6</output>

<gadget id="calculator">6 / (1/2)</gadget>
<output>12</output>

<gadget id="calculator">12 + 2</gadget>
<output>14</output>

<result>14</result>