Suicide can be Tragic. Depression can cause/lead to Suicide. Depression would make you want to Die. Die is related to Body. 
Union is a type of Organization. Band is a type of Organization. Band is related to Culture. Culture is a type of Society. 
Tragic <--HasProperty-- Suicide <--Causes-- Depression --CausesDesire--> Die <--RelatedTo--> Body 
Union --IsA--> Organization <--IsA-- Band <--RelatedTo--> Culture --IsA--> Society 