( ( ( Outer layers ) ( of ( sapwood ( of ( affected branches ) ) ) ) ) ( ( have ( brown streaks ) ) . ) )
(ROOT (S (NP (NP (JJ Outer) (NNS layers)) (PP (IN of) (NP (NP (NN sapwood)) (PP (IN of) (NP (JJ affected) (NNS branches)))))) (VP (VBP have) (NP (JJ brown) (NNS streaks))) (. .)))
Outer layers of sapwood of affected branches have brown streaks .
(ROOT (S (NP (NP (DT The) (JJS newest)) (, ,) (NP (NP (JJ outer) (NNS layers)) (PP (IN of) (NP (JJ secondary) (NN xylem))))) (VP (VBP are) (VP (VBN called) (S (ADJP (JJ sapwood))))) (. .)))