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.

Ex Input:
Given Relationship: 'be president of', Sentence: 'On Tuesday , November 4 , 2008 at about 8pm Pacfic Time , the major news networks officially called the election for the President of the United States of America for Democratic Candidate Barack Obama .'

Ex Output:
President


Ex Input:
Given Relationship: 'invade', Sentence: 'He referred to the USA invading Iraq without cause and nothing being done about it .'

Ex Output:
invading


Ex Input:
Given Relationship: 'be better than', Sentence: 'Melbourne is better than Sydney in nearly every way despite the fact that the weather is wild sometimes .'

Ex Output:

better