Given a phrase describing the relationship between two words, extract the words and the lexical relationship between them. The relation has to be of the type 'MemberOf', 'MadeOf', 'Synonym', 'Entails', 'HasA', 'HasProperty', 'PartOf', 'Antonym' or 'IsA'. The output should have the format: word1 relation word2.

build can be used as the opposite of destroy
build Antonym destroy

spot can be used as the opposite of stripe
spot Antonym stripe

stair can be used as the opposite of elevator

stair Antonym elevator