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.

Given Relationship: 'be hold', Sentence: 'Services will be held at St . Jude Catholic Church in Wofford Heights on Friday , Jan . 16 .'
held

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 .'
professor

Given Relationship: 'die for', Sentence: 'Other foundation can no man lay than that which God laid--Jesus Christ , who died for our sins--the just for the unjust .'

for