90375
Originally known as The Pantlind Hotel ( founded in 1913 ) , Amway Grand Plaza Hotel reopened in 1981 after extensive renovations done by Marvin DeWinter & Associates including the addition of a 29 story glass tower .
 Amway
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Amway