wordSet.cache.maintenancePeriodInMinutes
                                                    Specifies the delay, in minutes, between wordset cache maintenance operations. Indicates how often the NLE disk cache is cleaned.
| 
                                                                     Value  | 
                                                                
                                                                     Integer: minutes  | 
                                                            
| 
                                                                     Default  | 
                                                                
                                                                     60  | 
                                                            
| 
                                                                     How to set  | 
                                                                
                                                                     In Management Station, set on the Natural Language Engine service. If not using Management Station, set in the NLE configuration file (User-nle01.properties, see Configuration roadmap).  | 
                                                            
| 
                                                                     Usage  | 
                                                                
                                                                     Seldom changed.  |