Neck is part of Guitar. Neck is related to Target. Target is a synonym of Point. Point is related to Game. 
Mathematics is related to Product. Inspiration is a type of Product. Inspiration is a type of Emotion. Irony is a type of Emotion. 
Guitar <--PartOf-- Neck <--RelatedTo--> Target <--Synonym--> Point <--RelatedTo--> Game 
Mathematics <--RelatedTo--> Product <--IsA-- Inspiration --IsA--> Emotion <--IsA-- Irony 