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.

Given Relationship: 'stand for', Sentence: 'MMA stands for Mixed Martial Arts and it is a system in which all types of fighting styles are used to see , which one is best .'
stands

Given Relationship: 'be capital city of', Sentence: 'London , the capital city of England and the United Kingdom today is one of the world 's leading business , financial and cultural centres .'
capital

Given Relationship: 'win', Sentence: 'New England also became the second team after the Dallas Cowboys to win three Super Bowls in four years .'

win