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.

Input: Consider Input: 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 .'

Output: president


Input: Consider Input: Given Relationship: 'be city in', Sentence: 'Only Auckland of New Zealand cities rated higher as it was ranked fifth in the world in 2006 and 2007 .'

Output: cities


Input: Consider Input: Given Relationship: 'be president of', Sentence: 'Dwight D. Eisenhower , 34th President of the United States , born at Denison , Tex. , October 14 , 1890 .'


Output: President