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.
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Question: Given Relationship: 'be president of', Sentence: 'Barrack Obama has finally got elected as the President of the United States of America , after months of hard work and his unwavering faith in the electorate .'

Answer: President


Question: Given Relationship: 'be run against', Sentence: 'But I bet McCain will make the run against Clinton , or less likely Obama , and he will win .'

Answer: against


Question: Given Relationship: 'be capital of', Sentence: 'A short flight will take the group to Cusco , the "archaeological capital of South America " and capital of the fabled Inca Empire .'

Answer:
capital