"Has improper value for" is a predefined property to track input errors for irregular value annotations that was likely caused by type or allowed value restrictions.
en:Description of the unit, especially if not an organism but parts or remnants of it were present or observed, e.g. a nest of an insect or a song of a bird +
Description of the unit, especially if not an organism but parts or remnants of it were present or observed, e.g. a nest of an insect or a song of a bird +