28636
 An expedition led by Richard E. Leakey , the Kenyan paleoanthropologist , excavated the two fossil specimens 38 years ago along the Omo River in southern Ethiopia , near the town of Kibish . 
 Ethiopia, Omo River
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:
 Ethiopia, Omo River