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.
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Question: rubber is made of plant

Answer: rubber MadeOf plant


Question: reward can be used as the opposite of fee

Answer: reward Antonym fee


Question: boyfriend can be used as the opposite of girlfriend

Answer:
boyfriend Antonym girlfriend