Living is related to Harmony. Harmony is related to Music. Music is a type of Profession. 
Working requires Energy. Working is a synonym of Functional. Function is derived from Functional. Capacity is a type of Function. 
Living <--RelatedTo--> Harmony <--RelatedTo--> Music --IsA--> Profession 
Energy <--HasPrerequisite-- Working <--Synonym--> Functional <--DerivedFrom-- Function <--IsA-- Capacity 