Whether a judgment is a relation judgment depends on whether it determines the nature of the object or the relationship among the objects. If it determines the nature of the object, it can only be a essential judgement. If a sentence can be broken down into two or more simple property judgments, it is also a essential judgement; if it is a relationship between objects, it can not be broken down into two or more simple essential judgements, from this we can judge this judgment as a relational judgment.
a relational judgment?
A is a party member and class cadre.