TASK DEFINITION: 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.
PROBLEM: Given Relationship: 'be president of', Sentence: 'The United States of America just inaugurated its 44th president , Barack Obama .'

SOLUTION: president

PROBLEM: Given Relationship: 'be part of', Sentence: 'Expressing displeasure over Raj Thackeray statements that allegedly resulted in violence and attacks against north Indians in Mumbai and other parts of Maharashtra , the Bench said t is a dangerous tendency .'

SOLUTION: parts

PROBLEM: Given Relationship: 'require', Sentence: 'Files in PDF format require Adobe Acrobat or Acrobat Reader .'

SOLUTION:
require