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: 'Barack Obama elected the 44th President of the United States .'

Ex Output:
President


Ex Input:
Given Relationship: 'write', Sentence: 'He reminds us that Luke wrote Acts years after Paul had written his letters , so Acts should be treated ith great caution while learning about Paul !'

Ex Output:
written


Ex Input:
Given Relationship: 'be know for', Sentence: 'The cunning Machiavelli have said in his book as we know it to be the Prince .'

Ex Output:

know