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 son of', Sentence: 'She married Major Arthur William Fitz Roy Somerset , son of Field Marshal FitzRoy James Henry Somerset , 1st Baron Raglan , on 8 July 1845 .'

A: son
****
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: 'host on', Sentence: 'Video hosting provided by YouTube .'

A:
hosting
****