( ( Because ( ( ( type 1 ) diabetes ) ( is ( a ( ( relatively rare ) disease ) ) ) ) ) ( , ( you ( ( may ( wish ( to ( ( focus ( on prevention ) ) ( only ( if ( you ( know ( ( your child ) ( is ( at ( ( special risk ) ( for ( the disease ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Because) (S (NP (ADJP (NN type) (CD 1)) (NN diabetes)) (VP (VBZ is) (NP (DT a) (ADJP (RB relatively) (JJ rare)) (NN disease))))) (, ,) (NP (PRP you)) (VP (MD may) (VP (VB wish) (S (VP (TO to) (VP (VB focus) (PP (IN on) (NP (NN prevention))) (SBAR (RB only) (IN if) (S (NP (PRP you)) (VP (VBP know) (SBAR (S (NP (PRP$ your) (NN child)) (VP (VBZ is) (PP (IN at) (NP (NP (JJ special) (NN risk)) (PP (IN for) (NP (DT the) (NN disease)))))))))))))))) (. .)))
Because type 1 diabetes is a relatively rare disease, you may wish to focus on prevention only if you know your child is at special risk for the disease.
(ROOT (S (NP (NNP Diabetes)) (VP (VP (VBZ is) (ADJP (JJ unpreventable) (PP (IN in) (NP (DT the) (NN type) (CD one) (NN form))))) (CC but) (VP (MD may) (VP (VB be) (VP (VBN prevented) (PP (IN by) (NP (NN diet))) (SBAR (IN if) (S (NP (PRP it)) (VP (VBZ is) (PP (IN of) (NP (DT the) (JJ second) (NN type)))))))))) (. .)))
Diabetes is unpreventable in the type one form but may be prevented by diet if it is of the second type.