DM Object:Mesh 1 MPI processes
  type: plex
Mesh in 2 dimensions:
  0-cells: 4
  1-cells: 5
  2-cells: 2
Labels:
  depth: 3 strata of sizes (4, 5, 2)
 Join of           6           7 is           0
 Join of           9           7 is           1
 Full Join of           3           4           5 is           1
 Meet of           0           1 is           7
 Meet of           6           7 is           3
