Searching Directories Example ...

          5> (FINDPATH
                 ((WORK)
                  (COURSE (COP3212 (FALL05 GRADES PROG1.R PROG2.R)
                                   (FALL06 PROG2.R PROG1.R GRADES))))
                 (COURSE COP3212 FALL06 GRADES))
            6> (FINDPATH
                   ((COURSE (COP3212 (FALL05 GRADES PROG1.R PROG2.R)
                                     (FALL06 PROG2.R PROG1.R GRADES))))
                   (COURSE COP3212 FALL06 GRADES))
              7> (FINDPATH
                     ((COP3212 (FALL05 GRADES PROG1.R PROG2.R)
                               (FALL06 PROG2.R PROG1.R GRADES)))
                     (COP3212 FALL06 GRADES))
                8> (FINDPATH
                       ((FALL05 GRADES PROG1.R PROG2.R)
                        (FALL06 PROG2.R PROG1.R GRADES))
                       (FALL06 GRADES))
                  9> (FINDPATH ((FALL06 PROG2.R PROG1.R GRADES))
                         (FALL06 GRADES))
                    10> (FINDPATH (PROG2.R PROG1.R GRADES) (GRADES))
                    11> (FINDPATH (PROG1.R GRADES) (GRADES))
                    12> (FINDPATH (GRADES) (GRADES))
                    <12 (FINDPATH GRADES)
                    <11 (FINDPATH GRADES)
                    <10 (FINDPATH GRADES)
                  <9 (FINDPATH GRADES)
                <8 (FINDPATH GRADES)
              <7 (FINDPATH GRADES)
            <6 (FINDPATH GRADES)
          <5 (FINDPATH GRADES)
        <4 (FINDPATH GRADES)
      <3 (FINDPATH GRADES)
    <2 (FINDPATH GRADES)
  <1 (FINDPATH GRADES)
GRADES