18076
 The bombing was the most lethal attack on Russian troops this year , and it came during an increase in the number of attacks and terrorist acts in Dagestan , a predominantly Muslim region in southern Russia between Chechnya and the Caspian Sea . 
 Chechnya, Russia; Dagestan, Russia; Russia, Chechnya
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:
 Chechnya, Russia; Dagestan, Russia; Russia, Chechnya