33450
In 2006 , the United States Department of Education released a report concluding that average test scores for reading and mathematics , when adjusted for student and school characteristics , tend to be very similar among public schools and private schools .
 United States Department of Education
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United States Department of Education