 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)))) (. .)))
It is technically possible, but not permitted for one to use their hands.
( It ( ( is ( ( technically possible ) ( , ( ( but not ) ( ( permitted ( for one ) ) ( to ( use ( their hands ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (UCP (ADJP (RB technically) (JJ possible)) (, ,) (CONJP (CC but) (RB not)) (VP (VBN permitted) (PP (IN for) (NP (CD one))) (S (VP (TO to) (VP (VB use) (NP (PRP$ their) (NNS hands)))))))) (. .)))