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.
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Question: Given Relationship: 'be professor of', Sentence: 'Your nerves learn to communicate more effectively with your muscle cells , allowing the muscle to recruit more cells during each contraction , says Mark A. W. Andrews , PhD , associate professor of physiology at Lake Erie College of Osteopathic Medicine in Erie , Pa .'

Answer: professor


Question: Given Relationship: 'present at', Sentence: 'Paper presented at the First International Conference on English , Discourse and Cultural Communication .'

Answer: presented


Question: Given Relationship: 'be power by', Sentence: 'The StartUp Blog at PartnerUp is powered by WordPress 2.2.2 and delivered to you in 0.657 seconds using 31 queries .'

Answer:
powered