instruction:
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.
question:
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 .'
answer:
service


question:
Given Relationship: 'be elect by', Sentence: 'In autumn of the same year Lincoln was elected President of the United States , and this great victory for the Abolitionists immediately led to the secession of the Southern States and the civil war between the North and South .'
answer:
elected


question:
Given Relationship: 'write for', Sentence: 'That decision prompted Paul Lewis , an English professor at Boston College , to write a letter to the New York Times in which he decried what he called " Frankenfood , " an innovation as misguided as Victor Frankenstein 's creation of his monster .'
answer:

write