Square is related to Book. Book can be used for Income. 
Condemn is a synonym of Sentence. Sentence can be False. False is the opposite of Legitimate. Legitimate is related to Valid. 
Square <--RelatedTo--> Book --UsedFor--> Income 
Condemn <--Synonym--> Sentence --HasProperty--> False <--Antonym--> Legitimate <--RelatedTo--> Valid 