61864
Her summer residence is Gråsten Palace near Sønderborg , the former home of her mother , Queen Ingrid , who died in 2000 .
 Gråsten Palace, Sønderborg, Ingrid
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gråsten Palace, Sønderborg, Ingrid