function onDroppableReturnedDefaultAnnouncement({dragEvent, dropzone}) {
  const sourceText =
    dragEvent.source.textContent.trim() ||
    dragEvent.source.id ||
    'draggable element';
  const dropzoneText =
    dropzone.textContent.trim() || dropzone.id || 'droppable element';

  return `Returned ${sourceText} from ${dropzoneText}`;
}
Returns an announcement message when the Draggable element has returned to its original dropzone element
@param {DroppableReturnedEvent} droppableEvent
@return {String}