Definition: 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: Given Relationship: 'be professor at', Sentence: 'Dr. Bjorn Lomborg is adjunct professor at the Copenhagen Business School and author of the best-selling " The Skeptical Environmentalist " in which he challenged mainstream concerns about the environment and pointed out that we need to focus attention on the most important problems first .'
Output:
professor