Hypothesis is a type of Concept. Hypothesis is part of Theory. 
Sexuality is a synonym of Sex. Sex is related to Affair. Affair is related to Activity. Activity is related to Bite. 
Concept <--IsA-- Hypothesis --PartOf--> Theory 
Sexuality <--Synonym--> Sex <--RelatedTo--> Affair <--RelatedTo--> Activity <--RelatedTo--> Bite 