Complex sentence: In geometry, the augmented dodecahedron is one of the Johnson solids ("J" 58), consisting of a dodecahedron with a pentagonal pyramid attached to one of the faces.
Split into simpler sentences: In geometry, the augmented dodecahedron is one of the Johnson solids ("J" 58). When bisected, this polyhedron can be viewed as a dodecahedron with a pentagonal pyramid attached to one of the faces.