lis#abstract_object  a thing that does not exist in space-time; click here for details
  exclusion:  lis#possible_individual
  supertype:  lis#thing  sumo#abstract (pm)
  subtype:  lis#class  lis#multidimensional_object  lis#relationship
  member of:  lis#class_of_abstract_object  click here for details

No statement uses or specializes lis#abstract_object; click here to add one.