“( ( (cdu,rtrn="53") ) ) NOT (( (cdu,rtrn="53") AND (cdu,rltrn="(076.5") ) OR ( (cdu,rtrn="53") AND (cdu,rltrn="(024.7") ) OR ( (cdu,rtrn="53") AND (cdu,rltrn=":793.8") ) ) and ( ( lost,AlwaysMatches='' or lost,st-numeric=0)) ” devolvió 4 resultados.