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.

Input: Consider Input: Given Relationship: 'be service of', Sentence: 'See a list of publications by Mayo Clinic authors on mitral valve disease on PubMed , a service of the National Library of Medicine .'

Output: service


Input: Consider Input: Given Relationship: 'be fruit of', Sentence: 'Patience is a fruit of the Spirit .'

Output: fruit


Input: Consider Input: Given Relationship: 'be locate in', Sentence: 'With locations in the heart of the oilfield industry , Kruse corporate headquarters are located in Odessa , Texas with satellite offices in Tulsa , Oklahoma City , and San Antonio , Texas .'


Output: locations