85
Two days later , Perry operated on Kennedy 's assassin , Lee Harvey Oswald , who had just been shot by Jack Ruby .
 Lee Harvey Oswald, Kennedy; Jack Ruby, Lee Harvey 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:
 Lee Harvey Oswald, Kennedy; Jack Ruby, Lee Harvey Oswald