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 A fight among rival drug organizations for control of trafficking routes through Nuevo Laredo has turned it into one of the most violent cities along Mexico 's border with the United States , and the shootings appeared to be the latest round in that fight , the authorities said . 
 location contains: Mexico, Nuevo Laredo
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: 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:
 location contains: Mexico, Nuevo Laredo