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.
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Question: 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 .'

Answer: surrendered


Question: Given Relationship: 'be call', Sentence: 'Is anyone here familiar with a novel entitled Simon Called Peter by Robert Keable ?'

Answer: Called


Question: Given Relationship: 'be city in', Sentence: 'San Francisco is the fourth most populous city in California and the 14 th most populous city in the United States , with a 2007 estimated population of 764,976 .'

Answer:
city