18774
 `` The problem is that in the summer these patients go from dramatic warm to cold , and they can become very symptomatic from that , '' said Dr. Chris T. Derk , an assistant professor of medicine in the rheumatology division at Thomas Jefferson University in Philadelphia . 
 Philadelphia, Thomas Jefferson University
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 Philadelphia, Thomas Jefferson University