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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 .
 location contains: Buenos Aires Province, La Plata
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: 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:
 location contains: Buenos Aires Province, La Plata