3958
Most of the work conducted by the Warren Commission , which concluded that Lee Harvey Oswald acted alone in the Kennedy slaying , has been opened to the public , a move that has helped researchers evaluate _ and in many cases strongly criticize _ that investigation .
 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