AspectReal qasrRelative qasrBasisThe actual state of affairsA particular contrastExamplelā kātiba fī al-madīnati illā ʿAliyymā ʿAliyyun illā qāʾimExcluded alternativesOther writers within the stated real domainSitting in the intended standing/sitting contrast
The same negation–exception construction can express either kind. The particles alone do not settle the issue; one must examine reality and the interlocutor's intended contrast.