6134
 In San Diego , which is near Tijuana , Mexico , and is the nation 's busiest border crossing , about 20,000 demonstrators gathered at Balboa Park and marched downtown to a rally . 
 Mexico, Tijuana
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:
 Mexico, Tijuana