%%OFFKnowledgeBase 
  Rule Error Test
  @uses: RET
%

%%OFFQuestion
  FB
  - question1 [oc]
  -- on1
  -- off1
  - question2 [oc]
  -- on2
  -- off2
  - question3 [num]
  @package: RET
%

%%OFFRule 
  IF question1 = on1
  THEN question2 = on2
  
  question2 = off
  
  question3 = (41+1)
  
  @package: RET
%