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: 'be city of', Sentence: 'Lahore is Pakistan 's second largest city and the capital of the northeastern province of Punjab .'
Example Output: city

Example Input: Given Relationship: 'be president of', Sentence: 'At noon EST , Barack H. Obama became the 44th president of the United States of America .'
Example Output: president

Example Input: Given Relationship: 'be columnist for', Sentence: 'Jeff Jacoby , the excellent Boston Globe columnist , sent me a note "apropos race and rioting . "'
Example Output:
columnist