( ( Within ( each ( of ( these ( two ( main ( fiber types ) ) ) ) ) ) ) ( ( are ( ( ( many ( different subtypes ) ) , ) ( all ( from ( different ( plant sources ) ) ) ) ) ) . ) )
(ROOT (SINV (PP (IN Within) (NP (NP (DT each)) (PP (IN of) (NP (DT these) (CD two) (JJ main) (NN fiber) (NNS types))))) (VP (VBP are)) (NP (NP (JJ many) (JJ different) (NNS subtypes)) (, ,) (NP (NP (DT all)) (PP (IN from) (NP (JJ different) (NN plant) (NNS sources))))) (. .)))
Within each of these two main fiber types are many different subtypes, all from different plant sources.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD two) (JJ different) (JJ main) (NNS types)) (PP (IN of) (NP (NN diabetes))))) (. .)))