6.0 macs:Mac OS X10.4.1 SntP 10 (Tet(a) & Small(a)) | (Cube(b) & ~Cube(b)) Cube(a) & (~Cube(a) | ~Small(a)) & Small(a) Larger(a, b) & (Larger(a, a) | ~Larger(a, b)) a # b & ~LeftOf(a, b) & ~RightOf(a, b) & ~FrontOf(a, b) & ~BackOf(a, b) LeftOf(a, b) & LeftOf(b, c) & LeftOf(c, d) Larger(a, b) & Larger(b, c) & Larger(c, a) Between(a, b, c) & LeftOf(a, b) & LeftOf(b, c) ~[(Cube(a) | ~Small(a)) & (Cube(a) | ~Medium(a))] & Cube(a) ~[Dodec(b) & Larger(b, c)] & [Medium(b) | Tet(b)] ~[FrontOf(a, b) | ~LeftOf(b, c)] & Between(b, c, a) s=89991;