[(set([1, 2, 3]), set([4, 5, 6, 7]), set([8, 9, 10, 5])), (set([1, 2, 3, 4]
    ), set([4, 5, 6, 7]), set([8, 9, 10, 5]))]
Set Cover or Hitting Set; Numpy, Least element combinations to make up full set