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: 'surrender at', Sentence: 'When Cornwallis surrendered at Yorktown it is said while the British played The World Turned Upside Down , the Americans played Yankee Doodle .'

SOLUTION: surrendered

PROBLEM: Given Relationship: 'be wife of', Sentence: 'Michelle Obama , wife of Democratic Presidential candidate Barack Obama , acknowledges the crowd at the Democratic National Convention 2008 at the Pepsi Center in Denver , Colorado , on August 25 , 2008 .'

SOLUTION: wife

PROBLEM: Given Relationship: 'present to', Sentence: 'Paper presented at the New Zealand Language and Society Conference .'

SOLUTION:
presented