code: public List<String> getStringChildren(Long parentId) {
  		ArrayList<String> strings = new ArrayList<>();
  		List<StringEntity> entities = getByField(Column.PARENT_ID, parentId);
  		for (StringEntity entity : entities) {
  			strings.add(entity.getValue());
  		}
  		return strings;
  	}
docs: This method returns the list of strings associated with given parent id.
  
  @param parentId of parent entity.
  @return list of strings