32111
According to Martin Gardner , the " other " worlds of MWI have two different interpretations : real or unreal ; he claimed that Stephen Hawking and Steven Weinberg both favour the unreal interpretation .
 Martin Gardner, Stephen Hawking, Steven Weinberg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Martin Gardner, Stephen Hawking, Steven Weinberg