Idea is related to Justice. Justice is related to Liberty. Liberty is a synonym of Independence. 
Bat is related to Hearing. Hearing is a type of Session. Session is related to Lesson. 
Idea <--RelatedTo--> Justice <--RelatedTo--> Liberty <--Synonym--> Independence 
Bat <--RelatedTo--> Hearing --IsA--> Session <--RelatedTo--> Lesson 