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Political consultant William Schneider suggested this usage be referred to as the " past exonerative " tense , and commentator William Safire has defined the phrase as " [ a ] passive-evasive way of acknowledging error while distancing the speaker from responsibility for it " .
 William Schneider, William Safire
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:
 William Schneider, William Safire