流口水验证

添加了itemValue测试，如评论所示

rule "land-orbuilding..."when  Peson( $financeDetails: financeDetails, $personAddress: personAddress )  FinanceDetails( financeItemName == "Land or Building", itemValue == null || itemValue == 0 ) from $financeDetails  PersonAddress( status == AddressStatus.CURRENT,      type == AddressType.PHYSICAL,      useType == AddressUseType.HOME,      ownerShipType == "Own" ) from $personAddressthen  //...end

如何阅读其中一些文档？这非常类似于“第一部分”，只有很小的变化。