instruction:
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.
question:
Given Relationship: 'be candidate for', Sentence: 'I believe that Barack Obama is the best candidate to succeed George W. Bush as President of the United States .'
answer:
candidate


question:
Given Relationship: 'become', Sentence: 'Elected Vice President in 1944 , Truman became President upon Roosevelt 's sudden death in April 1945 and was immediately faced with the problems of winding down the war against the Axis and preparing the nation for postwar adjustment .'
answer:
became


question:
Given Relationship: 'be require for', Sentence: 'The magazine is rendered in PDF format , which requires Adobe Acrobat Reader .'
answer:

requires