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.
--------
Question: set is a kind of stage

Answer: set IsA stage


Question: spot can be used as the opposite of stripe

Answer: spot Antonym stripe


Question: lens is part of eye

Answer:
lens PartOf eye