Workdocumentation 2021-03-10

• 3DUI
  • remove properties that are not used more than 100 times
    • https://www.openresearch.org/wiki/PropertyUsageSorted
  • categorization into Event type is a valid prototype and should be discussed
  • Field property should not contain a Category only string property values
  • see https://or.bitplan.com/index.php/Property:Has_category and subject property from https://www.openresearch.org/wiki/Iteration1_Property_Mapping