( ( ( The majority ) ( of ( heterotrophic bacteria ) ) ) ( ( are ( ( ( saprotrophs ( -LRB- ( ( also ( called decomposers ) ) -RRB- ) ) ) , ) ( organisms ( that ( ( obtain ( their food ) ) ( from ( dead ( organic matter ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN majority)) (PP (IN of) (NP (JJ heterotrophic) (NNS bacteria)))) (VP (VBP are) (NP (NP (NP (NNS saprotrophs)) (PRN (-LRB- -LRB-) (VP (ADVP (RB also)) (VBN called) (NP (NNS decomposers))) (-RRB- -RRB-))) (, ,) (NP (NP (NNS organisms)) (SBAR (WHNP (WDT that)) (S (VP (VBP obtain) (NP (PRP$ their) (NN food)) (PP (IN from) (NP (JJ dead) (JJ organic) (NN matter))))))))) (. .)))
The majority of heterotrophic bacteria are saprotrophs (also called decomposers), organisms that obtain their food from dead organic matter.
(ROOT (S (NP (NNS Saprotrophs)) (VP (VBP are) (ADJP (JJ decomposers) (SBAR (IN that) (S (NP (NP (NN feed)) (PP (IN on) (NP (DT the) (JJ organic) (NN matter)))) (VP (VBD left) (PRT (RP over)) (PP (IN from) (NP (JJ other) (NNS decomposers)))))))) (. .)))