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 president of', Sentence: 'Barack Obama today becomes the first black president of the United States of America .'
[A]: president


[Q]: 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 .'
[A]: leader


[Q]: Given Relationship: 'be city in', Sentence: 'Although our two offices are located in South Florida , we handle motorcycle accidents throughout the State of Florida , including Ft . Lauderdale , Miami , Aventura , North Miami Beach , Lauderhill , West Palm Beach , Wellington , Lake Worth , Lantana , Sunrise , Plantation , Davie , Delray Beach , Wilton Manors , Oakland Park , Boca Raton and all other Florida cities .'
[A]:
cities