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Until President 's Day of this year , the public could not enter the sixth floor of the old school book depository in downtown Dallas , where it 's believed Lee Harvey Oswald fired the shots that killed Kennedy .
 Lee Harvey Oswald, Kennedy
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: Organization based in, Located in, Live in, Work for, Kill 
Text: {0} 
Answer:
 Lee Harvey Oswald, Kennedy