( It ( ( was ( an ( equall-sided ( triangle shape ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBD was) (NP (DT an) (JJ equall-sided) (NN triangle) (NN shape))) (. .)))
It was an equall-sided triangle shape.
(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)))))) (. .)))