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: head is a kind of word

SOLUTION: head IsA word

PROBLEM: circle can be used with the same meaning of ring

SOLUTION: circle Synonym ring

PROBLEM: arm can be used as the opposite of leg

SOLUTION:
arm Antonym leg