[ rec( autGroup := C10, blockSizes := [ 3, 4 ],
      blocks := [ [ 1, 2, 4, 6 ], [ 1, 2, 5 ], [ 1, 3, 5, 10 ], [ 1, 3, 8, 9 ], [ 1, 4, 10 ], [ 1, 6, 7, 9 ],
          [ 1, 7, 8 ], [ 2, 3, 5, 7 ], [ 2, 3, 6 ], [ 2, 4, 9, 10 ], [ 2, 7, 8, 10 ], [ 2, 8, 9 ], [ 3, 4, 6, 8 ],
          [ 3, 4, 7 ], [ 3, 9, 10 ], [ 4, 5, 7, 9 ], [ 4, 5, 8 ], [ 5, 6, 8, 10 ], [ 5, 6, 9 ], [ 6, 7, 10 ] ],
      isBinary := true, isBlockDesign := true, isSimple := true, r := 7,
      tSubsetStructure := rec( lambdas := [ 2 ], t := 2 ), v := 10 ),
  rec( autGroup := C10, blockSizes := [ 3, 4 ],
      blocks := [ [ 1, 2, 4, 6 ], [ 1, 2, 8 ], [ 1, 3, 5, 10 ], [ 1, 3, 8, 9 ], [ 1, 4, 5 ], [ 1, 6, 7, 9 ],
          [ 1, 7, 10 ], [ 2, 3, 5, 7 ], [ 2, 3, 9 ], [ 2, 4, 9, 10 ], [ 2, 5, 6 ], [ 2, 7, 8, 10 ], [ 3, 4, 6, 8 ],
          [ 3, 4, 10 ], [ 3, 6, 7 ], [ 4, 5, 7, 9 ], [ 4, 7, 8 ], [ 5, 6, 8, 10 ], [ 5, 8, 9 ], [ 6, 9, 10 ] ],
      isBinary := true, isBlockDesign := true, isSimple := true, r := 7,
      tSubsetStructure := rec( lambdas := [ 2 ], t := 2 ), v := 10 )];