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Sirhan Sirhan , in his first television interview , called Sen. Robert F. Kennedy his hero , but said he killed the presidential candidate more than 20 years ago because he felt betrayed by Kennedy 's support for Israel .
 Sirhan Sirhan, Sen. Robert F. 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:
 Sirhan Sirhan, Sen. Robert F. Kennedy