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 capital of', Sentence: 'London is the largest capital of England and United Kingdom .'
[A]: capital

[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

[Q]: Given Relationship: 'be version of', Sentence: 'Trvprotect antivirus service , prevx20 , avg anti-virus free windows vista ultimate ,windows vista home basic x the newest version is patible with windows vista .'
[A]:
version