Rate is related to Compare. Compare is related to Evaluate. 
Child can be used for Teaching. Teaching is related to Class. Class is a synonym of Distribute. Assign is a type of Distribute. 
Rate <--RelatedTo--> Compare <--RelatedTo--> Evaluate 
Child --UsedFor--> Teaching <--RelatedTo--> Class <--Synonym--> Distribute <--IsA-- Assign 