23991
She is recorded to have used implements such as whips , canes and birches , to chastise and punish her male clients , as well as the Berkley Horse , a specially designed flogging machine , and a pulley suspension system for lifting them off the floor .
 Berkley Horse
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Berkley Horse