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: 'declare war on', Sentence: 'When the United States declared war on Germany on April 6 , 1917 , Hemingway tried to enlist in the army .'
Example Output: declared

Example Input: Given Relationship: 'be country in', Sentence: 'Germany is one of the most powerful countries in Europe , yet remains little understood , by itself or the rest of the world .'
Example Output: countries

Example Input: Given Relationship: 'buy', Sentence: 'MIA Shoes , Buy MIA Shoes , Buy MIA Shoes Online , Mia Shoes Official Website , Purchase MIA ... Our Childrens line is handled through Trimfoot .'
Example Output:
Buy