Surround is a synonym of Skirt. Skirt is related to Half. Half is related to Snap. Snap is a synonym of Tear. 
Competition is related to Fight. Fight is related to Match. Match is a type of Supply. Rim is a type of Supply. 
Surround <--Synonym--> Skirt <--RelatedTo--> Half <--RelatedTo--> Snap <--Synonym--> Tear 
Competition <--RelatedTo--> Fight <--RelatedTo--> Match --IsA--> Supply <--IsA-- Rim 