Guess is a synonym of Venture. Venture is a synonym of Speculation. Speculation is a type of Hypothesis. Assumption is a type of Hypothesis. 
Secret can Bug. Bug is related to Fly. Person wants (to) Fly. Person wants (to) Convenience. 
Guess <--Synonym--> Venture <--Synonym--> Speculation --IsA--> Hypothesis <--IsA-- Assumption 
Secret --CapableOf--> Bug <--RelatedTo--> Fly <--Desires-- Person --Desires--> Convenience 