Fact can be True. Fact is the opposite of Hypothesis. Hypothesis is related to Assumption. Assumption is a type of Act. 
Ideal is related to Fit. Fit is related to Sound. Sound is related to Echo. Echo is a type of Resemble. 
True <--HasProperty-- Fact <--Antonym--> Hypothesis <--RelatedTo--> Assumption --IsA--> Act 
Ideal <--RelatedTo--> Fit <--RelatedTo--> Sound <--RelatedTo--> Echo --IsA--> Resemble 