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 island in', Sentence: 'Cuba is the bigger island extension of the biggest Antilles .'

Ex Output:
island

Ex Input:
Given Relationship: 'be son of', Sentence: 'James and John , the sons of Zebedee , had traveled with Jesus for three years and still they wanted to assume positions of leadership that would give them great prestige , satisfy their egos , and give them power over others .'

Ex Output:
sons

Ex Input:
Given Relationship: 'be son of', Sentence: 'If Seth and the other sons and daughters of Adam were born in the likeness and image of Adam , every descendant of Adam is born in the likeness and image of Adam .'

Ex Output:
sons