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 city in', Sentence: 'Dublin is the Capital city of Ireland .'

Ex Output:
city

Ex Input:
Given Relationship: 'be capital of', Sentence: 'Cusco is the ancient capital of Inca empire and is a beautiful , beautiful town .'

Ex Output:
capital

Ex Input:
Given Relationship: 'be know as', Sentence: 'Chicago may be known as the Second City , but in terms of corruption it knows no equal .'

Ex Output:
knows