Mail is related to Note. Note is related to Book. Job is a type of Book. 
Discourage is related to Punishment. Killing can cause/lead to Punishment. Killing can cause/lead to Pleasure. Pleasure is related to Happiness. 
Mail <--RelatedTo--> Note <--RelatedTo--> Book <--IsA-- Job 
Discourage <--RelatedTo--> Punishment <--Causes-- Killing --Causes--> Pleasure <--RelatedTo--> Happiness 