It appears that it ain't as free as it should be:<br><br> Person( age > $age * 2 )<br>Unable to return Declaration for identifier '$age * 2' : [Rule name='exa1']<br><br> Person( isAdult() )<br>Unable to Analyse Expression isAdult():<br>
[Error: no such identifier: isAdult]<br><br> Book( "Jones" memberOf authors )<br>Unable to build constraint as '"Jones"' is invalid<br><br>Cheers<br>Wolfgang<br><br>