115161
Among the people he meets are two of the casino 's ' high-rollers ' and an employee who looks after them as well as a retired doctor who says she has gambled away $ 4million in seven years .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None