Opera can be Boring. Boring is a type of Production. Production is related to Creation. Working can cause/lead to Creation. 
Anger is related to Cross. Cross is a type of Cover. Cover is a synonym of Screening. Screening is a type of Display. 
Opera --HasProperty--> Boring --IsA--> Production <--RelatedTo--> Creation <--Causes-- Working 
Anger <--RelatedTo--> Cross --IsA--> Cover <--Synonym--> Screening --IsA--> Display 