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On Wednesday , Lopez - Alegria and Jeff Wisoff will go back out to clean the top of the truss for the arrival of the solar wings , test their mini jetpacks and practice carrying each other .
 Lopez - Alegria, Jeff Wisoff, their, each other
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 Lopez - Alegria, Jeff Wisoff, their, each other