( Diseases ( ( are ( ( important ( -LRB- ( apparently ( natural -RRB- ) ) ) ) factors ) ) . ) )
(ROOT (S (NP (NNS Diseases)) (VP (VBP are) (NP (ADJP (ADJP (JJ important)) (PRN (-LRB- -LRB-) (ADVP (RB apparently)) (ADJP (JJ natural)) (-RRB- -RRB-))) (NNS factors))) (. .)))
Diseases are important (apparently natural) factors.
(ROOT (S (NP (NNP Community) (NNS interactions)) (VP (VBP are) (NP (NP (JJ important) (NNS factors)) (PP (IN in) (NP (JJ natural) (NN selection))))) (. .)))