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: jack is a kind of tool

Answer: jack IsA tool


Question: hobby can be used as the opposite of job

Answer: hobby Antonym job


Question: river can be used as the opposite of stream

Answer:
river Antonym stream