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: key is part of keyboard

Answer: key PartOf keyboard


Question: mind can be used as the opposite of matter

Answer: mind Antonym matter


Question: bone can be used as the opposite of skin

Answer:
bone Antonym skin