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.

Example Input: Given Relationship: 'be son of', Sentence: 'Phinehas son of Eleazar had been in charge of the gatekeepers in earlier times , and the LORD had been with him .'
Example Output: son

Example Input: Given Relationship: 'invade', Sentence: 'After the United States invaded Grenada in 1983 , the communist junta of Hudson Austin and Bernard Gourd was replaced by a government that allowed a free press and opposition parties to flourish .'
Example Output: invaded

Example Input: Given Relationship: 'be president of', Sentence: 'Now George W. Bush is the President of the United States .'
Example Output:
President