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 chairman of', Sentence: 'Alan Greenspan , the Chairman of the U.S. Federal Reserve , the current U.S. administration , and U.S. politicians of all stripes could teach a few lessons to those who dictated the level of inflation ahead of them .'

SOLUTION: Chairman

PROBLEM: Given Relationship: 'be country in', Sentence: 'The World Bank officially announced that it will reduce loan costs and simplify management procedures for loans to middle income countries in Latin America like Brazil , Argentina or Mexico , or creditworthy low-income countries such as El Salvador .'

SOLUTION: countries

PROBLEM: Given Relationship: 'provide by', Sentence: 'Paper provided by University of Pittsburgh , Department of Economics in its series Working Papers with number 276 .'

SOLUTION:
provided