#endlessness__endlessnes  the property of being (or seeming to be) without end
  supertype:  #duration.temporal_property__length  continuance in time; "the ceremony was of short duration"; "he complained about the length of time required"
  subtype:  #continuousness__ceaselessness__ceaselessnes__incessantness__incessantnes  the quality of something that continues without end or interruption

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