It takes 6 points to saw a section of wood into 3 sections. If it is to be sawed into 5 sections, how many points will it cost?
一段木料锯成3段要6分，如果要锯成5段，需要多少分．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>