( ( Following ( the ecosystems ) ) ( , ( there ( ( are ( chapters ( on ( birds ( , ( bugs ( , ( animals ( , ( herps ( , ( mushrooms ( , ( plants ( , ( rocks ( , ( ( stars and ) weather ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (VBG Following) (NP (DT the) (NNS ecosystems))) (, ,) (NP (EX there)) (VP (VBP are) (NP (NP (NNS chapters)) (PP (IN on) (NP (NNS birds) (, ,) (NNS bugs) (, ,) (NNS animals) (, ,) (NNS herps) (, ,) (NNS mushrooms) (, ,) (NNS plants) (, ,) (NNS rocks) (, ,) (NNS stars) (CC and) (NN weather))))) (. .)))
Following the ecosystems, there are chapters on birds, bugs, animals, herps, mushrooms, plants, rocks, stars and weather.
(ROOT (S (NP (NP (DT A) (NN role)) (PP (IN of) (NP (NP (NNS mushrooms)) (PP (IN in) (NP (NNS ecosystems)))))) (VP (VBZ is) (VP (VBG breaking) (PRT (RP down)) (NP (JJ dead) (NN plant) (NN material)))) (. .)))