 path #   cardinality   path
 ------   -----------   ----
      1             2   n01 > n02
      2             2   n01 > n03
      3             2   n01 > n04
      4             3   n01 > n02 > n05
      5             3   n01 > n02 > n06
      6             3   n01 > n03 > n07
      7             3   n01 > n03 > n08
      8             3   n01 > n04 > n09
      9             3   n01 > n04 > n10
     10             4   n01 > n02 > n05 > n11
     11             4   n01 > n02 > n05 > n12
     12             4   n01 > n04 > n10 > n13
     13             4   n01 > n04 > n10 > n14

