( ( Grossmann ( -LRB- ( 1989 -RRB- ) ) ) ( ( ( shows ( howtodeduce ( simple ( box shapes ) ) ) ) ( from ( three ( dimensional ( line segments ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Grossmann)) (PRN (-LRB- -LRB-) (NP (CD 1989)) (-RRB- -RRB-))) (VP (VBZ shows) (NP (JJ howtodeduce) (JJ simple) (NN box) (NNS shapes)) (PP (IN from) (NP (CD three) (JJ dimensional) (NN line) (NNS segments)))) (. .)))
Grossmann (1989) shows howtodeduce simple box shapes from three dimensional line segments.
(ROOT (S (NP (NNP Contour) (NNS lines)) (VP (VBP show) (NP (NP (DT the) (JJ three-dimensional) (NN shape)) (PP (IN of) (NP (NN land))))) (. .)))