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 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: 'bless', Sentence: 'God Bless America God bless the World .'
[A]: bless


[Q]: Given Relationship: 'be son of', Sentence: 'James and John , the sons of Zebedee , had traveled with Jesus for three years and still they wanted to assume positions of leadership that would give them great prestige , satisfy their egos , and give them power over others .'
[A]:
sons