associations: 8

mode  bc  el1 - local vertices <->  el2 - local vertices
1 -1 0 1 2 13 0 2 
1 -1 1 0 2 12 1 2 
1 -2 6 1 2 19 0 2 
1 -2 7 0 2 18 1 2 
1 -2 14 1 2 27 0 2 
1 -2 15 0 2 26 1 2 
1 -1 16 1 2 29 0 2 
1 -1 17 0 2 28 1 2