# D. Barnette. Diagrams and Schlegel diagrams
# Combinatorial Structures and Their Applications.
# Proc. Calgary Internat. Conf., Calgary, Canada, 1969
# (R. Guy and H. Hanani and N. Sauer and J. Schonheim, eds.), 1-4.
# Gordon and Breach, New York, NY, 1970.

Barnette_non_polytopal_3_sphere=[[1,2,3,4],[1,2,3,5],
[1,2,4,5],[1,3,4,6],[1,3,5,6],[1,4,5,7],[1,4,6,7],[1,5,6,8],
[1,5,7,8],[1,6,7,8],[2,3,4,8],[2,3,5,8],[2,4,5,7],[2,4,6,7],
[2,4,6,8],[2,5,7,8],[2,6,7,8],[3,4,6,8],[3,5,6,8]]