From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

Input: Consider Input: Given Relationship: 'be president of', Sentence: 'The United States of America just inaugurated its 44th president , Barack Obama .'

Output: president


Input: Consider Input: Given Relationship: 'begin in', Sentence: 'Three issues will be published during the Fall Semester beginning in August 2006 .'

Output: beginning


Input: Consider Input: Given Relationship: 'be father of', Sentence: 'So now we move from talking about Christ to God the Father .'


Output: Father