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.

[Q]: Given Relationship: 'be president of', Sentence: 'Of those 29 only one refers to general politics it is the one I signed with my colleague , the President of the People 's Republic of China , Mr Hu Jintao .'
[A]: President


[Q]: 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 .'
[A]: centre


[Q]: Given Relationship: 'be city in', Sentence: 'Kyoto is the ancient capital city of Japan .'
[A]:
city