( These ( ( are ( ( ( ( ( ( ( ( ( ( ( the tetrahedron ) ( with ( four ( triangle faces ) ) ) ) , ) ( ( the cube ) ( with ( six ( square faces ) ) ) ) ) , ) ( ( the octahedron ) ( with ( eight ( triangular faces ) ) ) ) ) , ) ( ( the dodecahedron ) ( with ( twelve ( pentagonal faces ) ) ) ) ) , ) and ) ( ( the icosahedron ) ( with ( twenty ( triangular faces ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These)) (VP (VBP are) (NP (NP (NP (DT the) (NN tetrahedron)) (PP (IN with) (NP (CD four) (NN triangle) (NNS faces)))) (, ,) (NP (NP (DT the) (NN cube)) (PP (IN with) (NP (CD six) (JJ square) (NNS faces)))) (, ,) (NP (NP (DT the) (NN octahedron)) (PP (IN with) (NP (CD eight) (NN triangular) (NNS faces)))) (, ,) (NP (NP (DT the) (NN dodecahedron)) (PP (IN with) (NP (CD twelve) (JJ pentagonal) (NNS faces)))) (, ,) (CC and) (NP (NP (DT the) (NN icosahedron)) (PP (IN with) (NP (CD twenty) (NN triangular) (NNS faces)))))) (. .)))
These are the tetrahedron with four triangle faces, the cube with six square faces, the octahedron with eight triangular faces, the dodecahedron with twelve pentagonal faces, and the icosahedron with twenty triangular faces.
(ROOT (S (NP (NP (DT The) (CD eight) (NNS sides)) (PP (IN of) (NP (DT an) (NN octahedra)))) (VP (VBP are) (PP (IN in) (NP (NP (DT the) (NN shape)) (PP (IN of) (NP (DT a) (NNS triangles)))))) (. .)))