#---------------
# Node list
#---------------
18 3 0 1 # number of nodes
# Front inflow face
1 -1 -1 0 0
2 -1 1 0 0
3 1 1 0 0
4 1 -1 0 0
# Bifurcation
5 -1 -1 5 0
6 -1 0 5 0
7 -1 1 5 0
8 1 1 5 0
9 1 0 5 0
10 1 -1 5 0
# Left bifurcation
11 -1 -3 10 0
12 -1 -2.5 10 0
13 1 -2.5 10 0
14 1 -3 10 0
# Right bifurcation
15 -1 2.5 10 0
16 -1 3 10 0
17 1 3 10 0
18 1 2.5 10 0
#---------------
# Face list
#---------------
15 1 # number of faces; yes, we do have boundary markers
# inflow face
1 0 1 # one polygon, zero holes, boundary 1
4 1 2 3 4 # four vertices and their indices in node list
# left main branch face
1 0 4 # one polygon, zero holes, boundary 4
4 1 4 10 5 # four vertices and their indices in node list
# upper main branch face
1 0 5 # one polygon, zero holes, boundary 5
5 4 3 8 9 10 # five vertices and their indices in node list
# right main branch face
1 0 6 # one polygon, zero holes, boundary 6
4 2 3 8 7 # four vertices and their indices in node list
# lower main branch face
1 0 7 # one polygon, zero holes, boundary 7
5 1 2 7 6 5 # five vertices and their indices in node list
# left left-bifurcation face
1 0 8 # one polygon, zero holes, boundary 8
4 5 10 14 11 # four vertices and their indices in node list
# upper left-bifurcation face
1 0 9 # one polygon, zero holes, boundary 9
4 10 9 13 14 # four vertices and their indices in node list
# right left-bifurcation face
1 0 10 # one polygon, zero holes, boundary 10
4 6 9 13 12 # four vertices and their indices in node list
# lower left-bifurcation face
1 0 11 # one polygon, zero holes, boundary 11
4 5 6 12 11 # four vertices and their indices in node list
# left-bifurcation outflow face
1 0 2 # one polygon, zero holes, boundary 2
4 11 12 13 14 # four vertices and their indices in node list
# left right-bifurcation face
1 0 12 # one polygon, zero holes, boundary 12
4 6 9 18 15 # four vertices and their indices in node list
# upper right-bifurcation face
1 0 13 # one polygon, zero holes, boundary 13
4 9 8 17 18 # four vertices and their indices in node list
# right right-bifurcation face
1 0 14 # one polygon, zero holes, boundary 14
4 7 8 17 16 # four vertices and their indices in node list
# lower right-bifurcation face
1 0 15 # one polygon, zero holes, boundary 15
4 6 7 16 15 # four vertices and their indices in node list
# right-bifurcation outflow face
1 0 3 # one polygon, zero holes, boundary 3
4 15 16 17 18 # four vertices and their indices in node list
#---------------
# Hole list
#---------------
0
#---------------
# Region list
#---------------
0