Currency is related to Gold. Gold is related to Type. Type is related to Pin. 
Compound is a type of Whole. Compound is a synonym of Combine. Machine can be used for Combine. Machine is related to Artificial. 
Currency <--RelatedTo--> Gold <--RelatedTo--> Type <--RelatedTo--> Pin 
Whole <--IsA-- Compound <--Synonym--> Combine <--UsedFor-- Machine <--RelatedTo--> Artificial 