[rules-users] Similarly Named DSL Rules Not Working

I have the following DSL entries: County is invalid for State [condition][]County is invalid for State=eval(StringUtils.isNotBlank ($i.getCntyCd())) and eval(!$i.getCntyCd().substring(0,2).equals($i.getStateCd ())) POB County is invalid for State [condition][]POB County is invalid for State=eval(StringUtils.isNotBlank ($i.getPobCntyCd())) and eval(!$i.getPobCntyCd().substring(0,2).equals ($i.getPobStateCd())) The rule in which I am using the DSL entry is as follows: rule "LevelOne: Place Of Birth, County is invalid" agenda-group "LevelOne" when There is a NwCitizenship - pobCntryCd equals MessageConstants.COUNTRY_CODE_US POB County is invalid for State then <Report error> end When I atempt to use the POB County... rule I get the following error: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ruleBase' defined in class path resource [spring-beans.xml]: Invocation of init method failed; nested exception is org.drools.rule.InvalidRulePackage: [143,33]: unknown:143:33 Unexpected token '$i'[143,47]: unknown:143:47 mismatched token: [@987,4726:4726=')',<12>,143:47]; expecting type THEN Caused by: org.drools.rule.InvalidRulePackage: [143,33]: unknown:143:33 Unexpected token '$i'[143,47]: unknown:143:47 mismatched token: [@987,4726:4726=')',<12>,143:47]; expecting type THEN at org.drools.rule.Package.checkValidity(Package.java:420) at org.drools.common.AbstractRuleBase.addPackage (AbstractRuleBase.java:292) at com.sample.RuleBaseBeanFactory.afterPropertiesSet etc... However, if I change "POB County" to "POBCounty" (no space, only change the DSL call leaving the actual code the same) everything works. Can someone explain why the two rules cannot coexist with the space in "POB County"? Thanks, Brian Enderle