| http://www.w3.org/ns/prov#value | - A spherical puzzle comprising, in combination:a first pair of generally semi-spherical portions each defining a quarter section of a sphere and formed of an arcuate face and a pair of perpendicular planar faces, the planar faces including a first planar face with a T-shaped groove formed between the arcuate outer face and a second planar face along a central extent thereof, the second planar face
|
