When the subject is universal, the judgment concerns its instances, and the statement explicitly specifies all instances or some instances, the proposition is quantified (mahsurah).
«كل إنسان حيوان»
Every human is an animal.
The quantifier “every” includes all human instances.
“Some students are present” uses “some” to restrict the judgment to a portion of the subject class.
Such a proposition is called quantified because it states the quantity or range of the judgment over the subject's instances.