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: 'control', Sentence: 'Voters giving the Democrats control of Congress and the White House responded to the message of hope but many Americans still embrace conservative values and goals .'

Output: control


Input: Consider Input: Given Relationship: 'present at', Sentence: 'Paper presented at the International Joint Conference on Neural Networks 2005 in Special Session " Applications of Learning and Data-Driven Methods to Earth Sciences and Climate Modeling" .'


Output: presented