| Symbol | First boundary 0-cell | Second boundary 0-cell |
| \(a\) | \(\left(-1,0,\frac{1}{2}\right)\) | \(\left(1,0,\frac{1}{2}\right)\) |
| \(b\) | \(\left(1,0,\frac{1}{2}\right)\) | \(\left(0,1,\frac{1}{2}\right)\) |
| \(c\) | \(\left(1,0,-\frac{1}{2}\right)\) | \(\left(1,0,\frac{1}{2}\right)\) |
| Symbol | Boundary 0-cells |
| \(\alpha\) | \(\left(-1,0,-\frac{1}{2}\right)\left(1,0,-\frac{1}{2}\right)\left(1,0,\frac{1}{2}\right)\left(-1,0,\frac{1}{2}\right)\) |
| \(\beta\) | \(\left(1,0,\frac{1}{2}\right)\left(0,1,\frac{1}{2}\right)\left(-1,0,\frac{1}{2}\right)\) |
| \(\gamma\) | \(\left(1,0,\frac{1}{2}\right)\left(1,0,-\frac{1}{2}\right)\left(0,1,-\frac{1}{2}\right)\left(0,1,\frac{1}{2}\right)\) |