521
But Stanley Eikenberry , president of the American Council on Education , an umbrella group for higher education , said in a statement , ` ` Given the large , fixed costs of most campuses , in personnel and facilities especially , these numbers show institutions are working hard to hold the line on increases . ' '
 the American Council on Education, an umbrella group for higher education, institutions, Stanley Eikenberry, president of the American Council on Education , an umbrella group for higher education, personnel, most campuses, facilities
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 the American Council on Education, an umbrella group for higher education, institutions, Stanley Eikenberry, president of the American Council on Education , an umbrella group for higher education, personnel, most campuses, facilities