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The trial of a security official accused of human rights abuses during the military dictatorship of the 1970 's , the first such legal proceeding since the Supreme Court overturned a pair of amnesty laws last year , has begun in La Plata , the capital of Buenos Aires Province .
 Buenos Aires Province, La Plata
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:
 Buenos Aires Province, La Plata