In[110]:=
  Tsimplify[%%]

Out[110]=

            p             p             p             p
  R     R       R     R       R     R       R     R
   pdef  abc     pedf  abc     pcef  abd     pecf  abd
  ----------- - ----------- + ----------- - ----------- + 
      18             9            18             9
   
              p             p             p             p
    R     R       R     R       R     R       R     R
     pcdf  abe     pdcf  abe     pcde  abf     pdce  abf
    ----------- - ----------- + ----------- - ----------- - 
        18             9            18             9
   
                p             p             p             p
    7 R     R       R     R       R     R       R     R
       pdef  acb     pedf  acb     pbef  acd     pebf  acd
    ------------- + ----------- + ----------- - ----------- + 
         90              9            18             9
   
              p             p             p             p
    R     R       R     R       R     R       R     R
     pbdf  ace     pdbf  ace     pbde  acf     pdbe  acf
    ----------- - ----------- + ----------- - ----------- - 
        18             9            18             9
   
                p             p               p
    7 R     R       R     R       7 R     R
       pcef  adb     pecf  adb       pbef  adc
    ------------- + ----------- - ------------- + 
         90              9             90
   
                 p             p             p
    14 R     R       R     R       R     R
        pebf  adc     pbcf  ade     pcbf  ade
    -------------- + ----------- - ----------- + 
          45             18             9
   
              p             p               p             p
    R     R       R     R       7 R     R       R     R
     pbce  adf     pcbe  adf       pcdf  aeb     pdcf  aeb
    ----------- - ----------- - ------------- + ----------- - 
        18             9             90              9
   
                p                p               p
    7 R     R       14 R     R       7 R     R
       pbdf  aec        pdbf  aec       pbcf  aed
    ------------- + -------------- - ------------- + 
         90               45              90
   
                 p             p             p
    14 R     R       R     R       R     R
        pcbf  aed     pbcd  aef     pcbd  aef
    -------------- + ----------- - ----------- - 
          45             18             9
   
                p             p               p
    7 R     R       R     R       7 R     R
       pcde  afb     pdce  afb       pbde  afc
    ------------- + ----------- - ------------- + 
         90              9             90
   
                 p               p                p
    14 R     R       7 R     R       14 R     R
        pdbe  afc       pbce  afd        pcbe  afd
    -------------- - ------------- + -------------- - 
          45              90               45
   
                p                p             p
    7 R     R       14 R     R       R     R
       pbcd  afe        pcbd  afe     paef  bcd
    ------------- + -------------- + ----------- - 
         90               45             18
   
              p             p             p             p
    R     R       R     R       R     R       R     R
     peaf  bcd     padf  bce     pdaf  bce     pade  bcf
    ----------- + ----------- - ----------- + ----------- - 
         9            18             9            18
   
              p               p             p             p
    R     R       7 R     R       R     R       R     R
     pdae  bcf       paef  bdc     pacf  bde     pcaf  bde
    ----------- - ------------- + ----------- - ----------- + 
         9             90             18             9
   
              p             p               p
    R     R       R     R       7 R     R
     pace  bdf     pcae  bdf       padf  bec
    ----------- - ----------- - ------------- - 
        18             9             90
   
                p             p             p
    7 R     R       R     R       R     R
       pacf  bed     pacd  bef     pcad  bef
    ------------- + ----------- - ----------- - 
         90             18             9
   
                p               p               p
    7 R     R       7 R     R       7 R     R
       pade  bfc       pace  bfd       pacd  bfe
    ------------- - ------------- - ------------- + 
         90              90              90
   
              p               p             p
    R     R       4 R     R       R     R
     pabf  cde       pbaf  cde     pabe  cdf
    ----------- + ------------- + ----------- + 
        18             45             18
   
                p               p             p
    4 R     R       7 R     R       R     R
       pbae  cdf       pabf  ced     pabd  cef
    ------------- - ------------- + ----------- + 
         45              90             18
   
                p               p               p
    4 R     R       7 R     R       7 R     R
       pbad  cef       pabe  cfd       pabd  cfe
    ------------- - ------------- - ------------- + 
         45              90              90
   
              p               p               p
    R     R       4 R     R       7 R     R
     pabc  def       pbac  def       pabc  dfe
    ----------- + ------------- - -------------
        18             45              90

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