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Many critics , including Ibn Warraq and Eddie Tabash , have suggested that meta-ethical relativists essentially take themselves out of any discussion of normative morality , since they seem to be rejecting an assumption of such discussions : the premise that there are right and wrong answers that can be discovered through reason .
 Ibn Warraq, Eddie Tabash
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Ibn Warraq, Eddie Tabash