Sphere is a type of Environment. Sphere is related to Circle. 
Devil is related to Vacuum. Vacuum is the opposite of Blow. Blow is a type of Lay. Lay is the opposite of Rise. 
Environment <--IsA-- Sphere <--RelatedTo--> Circle 
Devil <--RelatedTo--> Vacuum <--Antonym--> Blow --IsA--> Lay <--Antonym--> Rise 