( It ( ( is ( ( a ( triangle shape ) ) ( with ( sea ( from ( one side ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (NP (NP (DT a) (NN triangle) (NN shape)) (PP (IN with) (NP (NP (NN sea)) (PP (IN from) (NP (CD one) (NN side))))))) (. .)))
It is a triangle shape with sea from one side.
(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)))))) (. .)))