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

Output: city


Input: Consider Input: Given Relationship: 'be creator of', Sentence: 'Bjarne Stroustrup is the creator of C++ , one of the most widely used languages that allows object-oriented programming .'

Output: creator


Input: Consider Input: Given Relationship: 'be introduce in', Sentence: 'After the referral of the Bill to the Senate Committee significant amendments were introduced in the House of Representatives which removed Schedules 1 , 2 and 5 .'


Output: introduced