Open is a type of Yield. Yield is a synonym of Income. Income is related to Crop. Crop is related to Stuff. 
Test is related to Simple. Programming cannot be Simple. Programming is related to Develop. Develop is a type of Generate. 
Open --IsA--> Yield <--Synonym--> Income <--RelatedTo--> Crop <--RelatedTo--> Stuff 
Test <--RelatedTo--> Simple <--NotHasProperty-- Programming <--RelatedTo--> Develop --IsA--> Generate 