{{Graph[C1[10], C1[11], Dashed[8, 11], Dashed[9, 11], Dashed[9, 10], 
    Dashed[8, 10], Dashed[8, 9], OV[3, 6, 7], OV[4, 5, 7], OV[1, 5, 6], 
    OV[2, 3, 4]], Graph[C1[10], C1[11], Dashed[10, 11], Dashed[9, 11], 
    Dashed[8, 10], Dashed[8, 9], Dashed[8, 9], OV[5, 6, 7], OV[4, 6, 7], 
    OV[1, 3, 5], OV[2, 3, 4]], 
   Graph[C1[10], C1[11], Dashed[8, 11], Dashed[8, 11], Dashed[9, 10], 
    Dashed[9, 10], Dashed[8, 9], OV[3, 4, 7], OV[5, 6, 7], OV[1, 5, 6], 
    OV[2, 3, 4]], Graph[C1[11], C1[11], Dashed[8, 11], Dashed[8, 9], 
    Dashed[8, 10], Dashed[9, 10], Dashed[9, 10], OV[3, 4, 5], OV[4, 6, 7], 
    OV[5, 6, 7], OV[1, 2, 3]]}, 
  {2*BasisVector[1] + BasisVector[2], -BasisVector[2] + BasisVector[3], 
   BasisVector[4]}}