Grass is related to Short. Short is related to Break. Break is a synonym of Split. Split is a synonym of Skill. 
Double is a different concept from One. One is related to Bill. Bill wants (to) Sex. Sex is a synonym of Sexuality. 
Grass <--RelatedTo--> Short <--RelatedTo--> Break <--Synonym--> Split <--Synonym--> Skill 
Double <--DistinctFrom--> One <--RelatedTo--> Bill --Desires--> Sex <--Synonym--> Sexuality 