TASK DEFINITION: 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.
PROBLEM: key is part of keyboard

SOLUTION: key PartOf keyboard

PROBLEM: man is a kind of male

SOLUTION: man IsA male

PROBLEM: sound can be used as the opposite of silent

SOLUTION:
sound Antonym silent