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 could not stand watching him build a card house, so I left.
( ( ( ( ( I ( ( could not ) ( stand ( watching ( him ( build ( a ( card house ) ) ) ) ) ) ) ) , ) so ) ( I left ) ) . )
(ROOT (S (S (NP (PRP I)) (VP (MD could) (RB not) (VP (VB stand) (S (VP (VBG watching) (S (NP (PRP him)) (VP (VB build) (NP (DT a) (NN card) (NN house))))))))) (, ,) (IN so) (S (NP (PRP I)) (VP (VBD left))) (. .)))