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: star is part of constellation

Answer: star PartOf constellation


Question: roof is part of construction

Answer: roof PartOf construction


Question: roll can be used as the opposite of sit

Answer:
roll Antonym sit