( ( Diseases ( such ( as ( ( ( ( arthritis , ) ( multiple sclerosis ) ) and ) diabetes ) ) ) ) ( ( may ( be ( of ( this type ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Diseases)) (PP (JJ such) (IN as) (NP (NP (NN arthritis)) (, ,) (NP (JJ multiple) (NN sclerosis)) (CC and) (NP (NN diabetes))))) (VP (MD may) (VP (VB be) (PP (IN of) (NP (DT this) (NN type))))) (. .)))
Diseases such as arthritis, multiple sclerosis and diabetes may be of this type.
(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.