Wine Rack | Nancy Drew: Ghost of Thornton Hall

The graph on the ghost note looks familiar.
Go to the cellar and turn right. Go forward to the wine rack at the corner.
Decode the ghost clue:    Study the clue on the ghost note.

Amateur:    E immediately before O -  EO.
                  L is third. I sometime before E but sometime after B
                 Solution -  BILEO.

Master:  C before I before K;
              I is third; N immediately before B and K after N - makes K last.
              F neither first nor fourth - makes C first and F second.
              Solution -  C F I N B K