54820
Furthermore , Demetrio has daily educational commentaries that are broadcasted on WAQI 710-AM where he also hosts a talk-show each Saturday afternoon at 3:00 p.m. Perez published a character education textbook and has written extensively on educational and political issues .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None