( Also ( , ( ( natural substances ) ( ( make ( ( good ( nesting materials ) ) ( for ( small ( ( animals and ) insects ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Also)) (, ,) (NP (JJ natural) (NNS substances)) (VP (VBP make) (NP (NP (JJ good) (JJ nesting) (NNS materials)) (PP (IN for) (NP (JJ small) (NNS animals) (CC and) (NNS insects))))) (. .)))
Also, natural substances make good nesting materials for small animals and insects.
(ROOT (S (NP (DT A) (NN mineral)) (VP (VBZ is) (VP (VBN described) (PP (IN as) (NP (NP (DT a) (JJ natural) (NN substance)) (SBAR (WHNP (WDT that)) (S (VP (VBZ makes) (PRT (RP up)) (NP (NNS rocks))))))))) (. .)))