language proficiency
Deductions
- language proficiency is subclass of abstract entity ⇐ (language proficiency is subclass of property), (property is subclass of abstract entity), (is subclass of is a transitive relation)
- language proficiency is subclass of entity ⇐ (language proficiency is subclass of property), (property is subclass of entity), (is subclass of is a transitive relation)
- language proficiency is subclass of quality ⇐ (language proficiency is subclass of aptitude), (aptitude is subclass of quality), (is subclass of is a transitive relation)
- language proficiency is subclass of property ⇐ (language proficiency is subclass of aptitude), (aptitude is subclass of property), (is subclass of is a transitive relation)