anchor.diff:    (warn 'deprecated-feature :feature #'remove-property :version "3.0.2")
     (property-makunbound object property-name))
   
  -(defmopfun remove-all-direct-properties (object)
  +(defun remove-all-direct-properties (object)
     "Wipes out all direct properties and their values from OBJECT."
  +  (if (std-object-p object)
  +      (std-sheeple:remove-all-direct-properties object)
  +      (smop:remove-all-direct-properties (object-metaobject object) object)))
  +(defun std-sheeple:remove-all-direct-properties (object)
     (change-mold object (ensure-mold (object-parents object) #()))
     object)
   
  +
   ;;;
   ;;; Value
   ;;;
  -(defmopfun property-value (object property-name)
  +(defun property-value (object property-name)
     "Returns the property-value for PROPERTY-NAME found first in OBJECT's hierarchy list.
   If the value does not exist in the hierarchy list, a condition of type `unbound-property'
   is signaled."
  +  (if (std-object-p object)
  +      (std-sheeple:property-value object property-name)
  +      (smop:property-value (object-metaobject object) object property-name)))
  +(defun std-sheeple:property-value (object property-name)
     (check-type property-name symbol)
     (dolist (ancestor (object-hierarchy-list object)
              (error 'unbound-property :object object :property-name property-name))
  
positive.code: (defun property-position (property-name object)
    (position property-name (mold-properties (%object-mold object))))
  
  (defmacro defmopfun (name lambda-list &body body)
    (let ((documentation (when (stringp (car body)) (pop body))))
      `(progn
         (defun ,name ,lambda-list
           ,(when documentation documentation)
           (if (std-object-p ,(car lambda-list))
               (,(intern (symbol-name name) :std-sheeple)
                 ,@lambda-list)
               (,(intern (symbol-name name) :smop)
                 (object-metaobject ,(car lambda-list))
                 ,@lambda-list)))
         (defun ,(intern (symbol-name name) :std-sheeple) ,lambda-list
           ,@body))))
  
  ;;;
  ;;; Property Metaobjects
  ;;;
  
negative.code:                           (list (read *query-io*)))
             value))))
  
  (defun direct-property-p (object property-name)
    "Returns T if OBJECT has a property called PROPERTY-NAME as a direct property.
  NIL otherwise."
    (if (std-object-p object)
        (std-sheeple:direct-property-p object property-name)
        (smop:direct-property-p (object-metaobject object) object property-name)))
  (defun std-sheeple:direct-property-p (object property-name)
    (handler-case (progn (direct-property-value object property-name) t)
      (unbound-property () nil)))
  
  (defun property-makunbound (object property-name)
    "Removes OBJECT's direct property named PROPERTY-NAME. Signals an error if there is no such
  direct property. Returns OBJECT."
    (if (std-object-p object)
        (std-sheeple:property-makunbound object property-name)
        (smop:property-makunbound (object-metaobject object) object property-name)))
  (defun std-sheeple:property-makunbound (object property-name)
    (if (direct-property-p object property-name)
        (prog1 object
          (change-mold object
  