( ( ( ( ( The octahedron ) ( is ( made ( from ( eight ( equilateral triangles ) ) ) ) ) ) and ) ( ( the dodecahedron ) ( has ( twelve ( regular pentagons ) ) ) ) ) . )
(ROOT (S (S (NP (DT The) (NN octahedron)) (VP (VBZ is) (VP (VBN made) (PP (IN from) (NP (CD eight) (JJ equilateral) (NNS triangles)))))) (CC and) (S (NP (DT the) (NN dodecahedron)) (VP (VBZ has) (NP (CD twelve) (JJ regular) (NNS pentagons)))) (. .)))
The octahedron is made from eight equilateral triangles and the dodecahedron has twelve regular pentagons.
(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)))))) (. .)))