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.

heavy can be used as the opposite of lightweight
heavy Antonym lightweight

sign can be used with the same meaning of mark
sign Synonym mark

child is a member of family

child MemberOf family