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 country in', Sentence: 'Canada and the countries of the Americas are proceeding with Summits and many economic liberalisation negotiations , which , if realised , will transform the political , environmental , social and economic geography of the Western Hemisphere .'

SOLUTION: countries

PROBLEM: Given Relationship: 'be president of', Sentence: 'Pakistan 's president Gen . Pervez Musharraf threatened yesterday to kill militant followers of an Islamic cleric who said he and his comrades prefer death to surrender .'

SOLUTION: president

PROBLEM: Given Relationship: 'be chairman of', Sentence: 'The new chairman of the House Science Committee , Sherwood Boehlert , R-N.Y. , has spoken out against Tito 's visit , despite the financier 's strong donations to the GOP -- so much so that President Bush himself may make a call to the station when Tito arrives .'

SOLUTION:
chairman