Thought is related to Consider. Debate is a type of Consider. Debate is related to Argument. 
Tree is related to Page. Page is a synonym of Record. Record is related to People. Migration is a type of People. 
Thought <--RelatedTo--> Consider <--IsA-- Debate <--RelatedTo--> Argument 
Tree <--RelatedTo--> Page <--Synonym--> Record <--RelatedTo--> People <--IsA-- Migration 