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 centre of', Sentence: 'Although it is thought that Tokyo is the fashion centre of Japan , fashion experts say Osaka is where the big trends actually start .'

Output: centre


Input: Consider Input: Given Relationship: 'invade', Sentence: 'The Japanese army invaded Manchuria without its own government 's consent .'


Output: invaded