By placing ”one card ”on another ”with mathematical ”precision!" I watched the card house rising under his hands, story by story. 
( ( By ( ( ( ( placing '' ) ( ( ( one card ) '' ) ( on another ) ) ) '' ) ( with ( mathematical ( '' precision ) ) ) ) ) ( ! ( '' ( I ( ( watched ( ( the ( card house ) ) ( ( rising ( under ( ( ( his hands ) , ) story ) ) ) ( by story ) ) ) ) . ) ) ) ) )
(ROOT (S (S (PP (IN By) (S (VP (VBG placing) ('' '') (NP (NP (CD one) (NN card)) ('' '') (PP (IN on) (NP (DT another)))) ('' '') (PP (IN with) (NP (NN mathematical) ('' '') (NN precision))))))) (. !) ('' '') (NP (PRP I)) (VP (VBD watched) (NP (NP (DT the) (NN card) (NN house)) (VP (VBG rising) (PP (IN under) (NP (NP (PRP$ his) (NNS hands)) (, ,) (NP (NN story)))) (PP (IN by) (NP (NN story)))))) (. .)))
I watched as he built the house, story by story.
( I ( ( watched ( as ( he ( ( built ( ( ( the house ) , ) story ) ) ( by story ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD watched) (SBAR (IN as) (S (NP (PRP he)) (VP (VBD built) (NP (NP (DT the) (NN house)) (, ,) (NP (NN story))) (PP (IN by) (NP (NN story))))))) (. .)))