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 capital of', Sentence: 'To visit Machu Picchu you must spend at least 2 nights in Cuzco which was the capital of the Inca empire and has many archaeological ruins in the city and nearby .'
Example Output: capital

Example Input: Given Relationship: 'be member of', Sentence: 'The Board of Directors shall appoint two Board members as co-Tournament Directors for each tournament , who shall be responsible for all arrangements .'
Example Output: members

Example Input: Given Relationship: 'cause', Sentence: 'AIDS is caused by HIV virus , which produces 12 different kinds of proteins .'
Example Output:
caused