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 brother of', Sentence: 'It is believed that John Graham and Nancy Graham Raines had brothers James Graham and Thomas Graham , and probably the William Graham , who m . Susannah ?'

Output: brothers

Input: Consider Input: Given Relationship: 'be chairman of', Sentence: 'President Bush named his top economic advisor , Ben Bernanke to replace economic legend Alan Greenspan as the chairman of the Federal Reserve .'

Output: chairman

Input: Consider Input: Given Relationship: 'succeed', Sentence: 'The motive attributed to Chen was that Lin Piao would become the Vice-President if Mao became the President and Lin could succeed Mao as President later .'
Output: succeed