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A 3-dimensional polyhedron in QQ^3 defined as the convex hull of 1 vertex and 3 rays.
[An inequality (1, -1, 2) x + 0 >= 0, An inequality (1, 2, 3) x + 0 >= 0, An inequality (3, 0, -1) x + 0 >= 0]
A 3-dimensional polyhedron in QQ^3 defined as the convex hull of 1 vertex and 3 rays.
[A ray in the direction (1, -5, 3), A ray in the direction (1, 7, 3), A ray in the direction (7, 1, -3), A vertex at (0, 0, 0)]