title: Get back to above rule in clips
body: <p>when I try to call a <code>defrule</code> that have been used already, clips stop..</p>
  
  <p>some <code>defrule</code> need to be used more than one time, is there any way to do it</p>
  
  <p>here is an example</p>
  
  <pre><code>(
  
  defrule choice-in-powerPlant2
  (powerPlant2-question)
  =&gt;
  (printout t "Are Filter and Carburetor Air working fine(y/n)?" crlf)
  (bind ?response (check-YNoptions-input)); Get user input on type of questions
  (if (eq ?response y)
      then
      (assert (powerPlant1-question)
      )
  )
  
  (if (or(eq ?response q) (eq ?response Q))
      then 
  (output-exitmessage)
  
  )
  
  (if (eq ?response n)
      then
          (printout t "Have you fixed this(y/n)?" crlf)
          (bind ?response (check-YNoptions-input)); Get user input on type of questions
          (if (eq ?response y)
              then
              (assert (powerPlant1-question)
              )
          )
          (if (eq ?response n)
              then
              (printout req "Please replace Filter and Carburetor Air " crlf)
              (assert (powerPlant3-question))
      )
  )
  )
  </code></pre>
  
  <p>in rule 2
  I want to go back to rule 1 when I enter "y"=yes</p>
  
  <p>" running stopped once I enterd "y" "</p>