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 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 .'

Output: professor


Input: Consider Input: Given Relationship: 'be language of', Sentence: 'Belarusian language East Slavic language of Belarus , spoken by some 10.2 million ... Belarusian features begin to appear in Church Slavonic manuscripts from the 14th ...'

Output: language


Input: Consider Input: Given Relationship: 'be locate in', Sentence: 'The Heartland Inn Des Moines Is Located Across From The Des Moines International Airport , And All The City Has To Offer .'


Output: Located