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: 'be leader of', Sentence: 'Kadima has now drawn even with the Likud in some recent polls despite the fact that Kadima leader Tzipi Livni has the unnerving habit of telling the truth , even when her views do not coincide with those of most Israelis .'
leader

Given Relationship: 'attack', Sentence: 'If China would choose to ever attack Taiwan , with such a huge force , the U.S. would have great difficulty repelling such a large military that could quickly overrun the Island .'
attack

Given Relationship: 'be city in', Sentence: 'The project worked so well that it has now been expanded to include the cities of Phoenix , Arizona and Los Angeles , California .'

cities