Expand[CD[%,la,lb,lc,ld,le]]

Out[17]=

           p                       p                      p
  -(sigma     sigma     )   sigma     sigma        sigma     sigma
         ;d e      ;pabc         ;c e      ;pabd        ;c d      ;pabe
  ----------------------- - -------------------- - -------------------- - 
             2                       2                      2
   
           p                      p                      p
    sigma     sigma        sigma     sigma        sigma     sigma
         ;b e      ;pacd        ;b d      ;pace        ;b c      ;pade
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
           p                      p                      p
    sigma     sigma        sigma     sigma        sigma     sigma
         ;a e      ;pbcd        ;a d      ;pbce        ;a c      ;pbde
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
           p                                p                      p
    sigma     sigma        sigma     sigma        sigma     sigma
         ;a b      ;pcde        ;pde      ;a bc        ;pce      ;a bd
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
                     p                      p                      p
    sigma     sigma        sigma     sigma        sigma     sigma
         ;pcd      ;a be        ;pbe      ;a cd        ;pbd      ;a ce
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
                     p                      p                      p
    sigma     sigma        sigma     sigma        sigma     sigma
         ;pbc      ;a de        ;pae      ;b cd        ;pad      ;b ce
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
                     p                      p            p
    sigma     sigma        sigma     sigma        sigma    sigma
         ;pac      ;b de        ;pab      ;c de        ;e       ;pabcd
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
           p                      p                      p
    sigma    sigma         sigma    sigma         sigma    sigma
         ;d       ;pabce        ;c       ;pabde        ;b       ;pacde
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
           p                                             p
    sigma    sigma                       sigma    sigma
         ;a       ;pbcde                      ;pe      ;a bcd
    -------------------- + sigma       - -------------------- - 
             2                  ;abcde            2
   
                    p                      p                      p
    sigma    sigma         sigma    sigma         sigma    sigma
         ;pd      ;a bce        ;pc      ;a bde        ;pb      ;a cde
    -------------------- - -------------------- - -------------------- - 
             2                      2                      2
   
                    p            p                               p
    sigma    sigma         sigma   sigma          sigma   sigma
         ;pa      ;b cde        ;       ;pabcde        ;p      ;a bcde
    -------------------- - -------------------- - --------------------
             2                      2                      2

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