Earth is related to Huge. Huge is related to Giant. Giant is a synonym of Enormous. 
Boundary is a synonym of Term. Term is related to Finance. Finance is a type of Pay. Pay is related to Earn. 
Earth <--RelatedTo--> Huge <--RelatedTo--> Giant <--Synonym--> Enormous 
Boundary <--Synonym--> Term <--RelatedTo--> Finance --IsA--> Pay <--RelatedTo--> Earn 