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: 'be invade', Sentence: 'When it was reported that Russia had invaded Georgia unprovoked , I remembered reading where one of McCain campaign advisors was until just recently a lobbyist for Georgia .'
invaded

Given Relationship: 'present to', Sentence: 'Denise Troll , Paper presented at the 4th Northumbria International Conference , Pittsburgh , PA , August 2001 .'

presented