51640
Edward S. Walker Jr. , a former ambassador to Israel and Egypt and now the president of the Middle East Institute , a research institution in Washington , said Mr. Matthews had worked directly for two years with Ambassador Alfred L. Atherton Jr. , the Carter administration 's Middle East envoy , on the details that preceded the formal talks , including talking to Egyptian and Israeli officials and preparing position papers .
 Middle East, Egypt; Middle East, Israel
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 Middle East, Egypt; Middle East, Israel