( These ( ( are ( ( ( ( ( ( the tetrahedron ) ( -LRB- ( ( made ( of ( four ( equilateral triangles ) ) ) ) -RRB- ) ) ) , ) ( the cube ) ) , ) ( ( ( ( ( ( the octahedron ) ( -LRB- ( ( eight ( equilateral triangles ) ) -RRB- ) ) ) , ) ( ( the dodecahedron ) ( -LRB- ( ( twelve pentagons ) -RRB- ) ) ) ) and ) ( ( the icosahedron ) ( -LRB- ( ( twenty ( equilateral triangles ) ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These)) (VP (VBP are) (NP (NP (NP (NP (DT the) (NN tetrahedron)) (PRN (-LRB- -LRB-) (VP (VBN made) (PP (IN of) (NP (CD four) (JJ equilateral) (NNS triangles)))) (-RRB- -RRB-))) (, ,) (NP (DT the) (NN cube))) (, ,) (NP (NP (NP (DT the) (NN octahedron)) (PRN (-LRB- -LRB-) (NP (CD eight) (NNP equilateral) (NNS triangles)) (-RRB- -RRB-))) (, ,) (NP (NP (DT the) (NN dodecahedron)) (PRN (-LRB- -LRB-) (NP (CD twelve) (NNS pentagons)) (-RRB- -RRB-))) (CC and) (NP (NP (DT the) (NN icosahedron)) (PRN (-LRB- -LRB-) (NP (CD twenty) (NNP equilateral) (NNS triangles)) (-RRB- -RRB-)))))) (. .)))
These are the tetrahedron (made of four equilateral triangles), the cube, the octahedron (eight equilateral triangles), the dodecahedron (twelve pentagons) and the icosahedron (twenty equilateral triangles).
(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)))))) (. .)))