40192
Some cosmologists and physicists argue that a challenge to the cosmological argument is the nature of time : " One finds that time just disappears from the Wheeler–DeWitt equation " ( Carlo Rovelli ) .
 Wheeler–DeWitt, Carlo Rovelli
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Wheeler–DeWitt, Carlo Rovelli