The computer, on command, then connects the image of the points on its screen with a series of line segments that form the silhouette of the pattern piece.
( ( ( ( ( The computer ) , ) ( on command ) ) , ) ( then ( ( connects ( ( ( the image ) ( of ( ( the points ) ( on ( ( its screen ) ( with ( ( a series ) ( of ( line segments ) ) ) ) ) ) ) ) ) ( that ( form ( ( the silhouette ) ( of ( the ( pattern piece ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (DT The) (NN computer)) (, ,) (PP (IN on) (NP (NN command))) (, ,)) (ADVP (RB then)) (VP (VBZ connects) (NP (NP (DT the) (NN image)) (PP (IN of) (NP (NP (DT the) (NNS points)) (PP (IN on) (NP (NP (PRP$ its) (NN screen)) (PP (IN with) (NP (NP (DT a) (NN series)) (PP (IN of) (NP (NN line) (NNS segments))))))))) (SBAR (WHNP (WDT that)) (S (VP (VBP form) (NP (NP (DT the) (NN silhouette)) (PP (IN of) (NP (DT the) (NN pattern) (NN piece))))))))) (. .)))
The image of the points on the screen are connected by the computer.
( ( ( The image ) ( of ( ( the points ) ( on ( the screen ) ) ) ) ) ( ( are ( connected ( by ( the computer ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN image)) (PP (IN of) (NP (NP (DT the) (NNS points)) (PP (IN on) (NP (DT the) (NN screen)))))) (VP (VBP are) (VP (VBN connected) (PP (IN by) (NP (DT the) (NN computer))))) (. .)))