174821
Anke Huber was the defending champion but lost in the first round to Denisa Chládková .
 Anke Huber, Denisa Chládková
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Anke Huber, Denisa Chládková