TASK DEFINITION: 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.
PROBLEM: Given Relationship: 'be president of', Sentence: 'Barack Obama elected the 44th President of the United States .'

SOLUTION: President

PROBLEM: Given Relationship: 'be city of', Sentence: 'It is the only freighter service operating from Coimbatore Airport , which is located in a highly industrialised area and is the second largest city in the state of Tamil Nadu .'

SOLUTION: city

PROBLEM: Given Relationship: 'be border by', Sentence: 'The country is borders Russia in the North and China in the South .'

SOLUTION:
borders