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 gift of', Sentence: 'Baptism in the Holy Spirit - The baptism in the Holy Spirit is a gift from God as promised by the Lord Jesus Christ to all believers and is received after the New Birth .'

Output: gift


Input: Consider Input: Given Relationship: 'be president of', Sentence: 'Barack H. Obama became the president of the United States at noon as required by the 20th amendment of the Constitution .'


Output: president