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.

Example Input: Given Relationship: 'bless of', Sentence: 'And God bless the United States of America" .'
Example Output: bless

Example Input: Given Relationship: 'be chief of', Sentence: 'We work for the Chief Executive Officer also known as The President of the United States .'
Example Output: Chief

Example Input: Given Relationship: 'present at', Sentence: 'Poster presented at the 15th International AIDS Conference , Bangkok .'
Example Output:
presented