 You can't do it with your hands; you need a peeler.
( ( ( ( You ( ( ca n't ) ( ( do it ) ( with ( your hands ) ) ) ) ) ; ) ( you ( need ( a peeler ) ) ) ) . )
(ROOT (S (S (NP (PRP You)) (VP (MD ca) (RB n't) (VP (VB do) (NP (PRP it)) (PP (IN with) (NP (PRP$ your) (NNS hands)))))) (: ;) (S (NP (PRP you)) (VP (VBP need) (NP (DT a) (NN peeler)))) (. .)))
A peeler is needed, you can't do it with your hands.
( ( ( A peeler ) ( is needed ) ) ( , ( you ( ( ( ca n't ) ( ( do it ) ( with ( your hands ) ) ) ) . ) ) ) )
(ROOT (S (S (NP (DT A) (NN peeler)) (VP (VBZ is) (VP (VBN needed)))) (, ,) (NP (PRP you)) (VP (MD ca) (RB n't) (VP (VB do) (NP (PRP it)) (PP (IN with) (NP (PRP$ your) (NNS hands))))) (. .)))