If it takes 6 minutes to saw a piece of wood into 2 pieces, how many minutes will it take to saw it into 7 pieces?
将一根木料锯成2段要用6分钟，如果锯成7段要用多少分钟．
<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">6 / 1</gadget>
<output>6</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<result>36</result>