//연결송수관설비의 화재안전기준(NFSC 502) 5조 (배관) 3항 2호

Check(NFSC502_5_3_2){
     KS
}

KS{
  Duct myDuct{
       isFireResistantStructure(Duct)=True 
  }
  Pit myPit{
      isFireResistantStructure(Pit)=True 
  }

  isInstalled(Pipe, myDuct)=True
  OR isInstalled(Pipe, myPit)=True
  
}