( therefore ( ( ( ( change or ) motion ) ( in ( the figure ) ) ) ( ( can ( be ( simply ( ( represented ( as ( ( change or ) variation ) ) ) ( in ( a ( constraint value ) ) ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB therefore)) (NP (NP (NN change) (CC or) (NN motion)) (PP (IN in) (NP (DT the) (NN figure)))) (VP (MD can) (VP (VB be) (VP (ADVP (RB simply)) (VBN represented) (PP (IN as) (NP (NN change) (CC or) (NN variation))) (PP (IN in) (NP (DT a) (NN constraint) (NN value)))))) (. .)))
therefore change or motion in the figure can be simply represented as change or variation in a constraint value.
(ROOT (S (NP (NNP Motion)) (VP (MD can) (VP (VB be) (VP (VBN defined) (ADVP (RB simply)) (PP (IN as) (NP (NP (DT a) (NN change)) (PP (IN in) (NP (NN position)))))))) (. .)))