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They will also be cleaning the car Oswald drove on the day Kennedy was shot and the ambulance that took Oswald to hospital after he was shot by Jack Ruby .
 Jack Ruby, Oswald
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:
 Jack Ruby, Oswald