( Vertebrates ( ( are ( named ( for ( ( vertebrae , ) ( ( the series ) ( of ( bones ( that ( ( make up ) ( the ( vertebral ( ( column or ) backbone ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Vertebrates)) (VP (VBP are) (VP (VBN named) (PP (IN for) (NP (NP (NN vertebrae)) (, ,) (NP (NP (DT the) (NN series)) (PP (IN of) (NP (NP (NNS bones)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (DT the) (JJ vertebral) (NN column) (CC or) (NN backbone)))))))))))) (. .)))
Vertebrates are named for vertebrae, the series of bones that make up the vertebral column or backbone.
(ROOT (S (NP (NNP Backbone)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (DT the) (JJ vertebral) (NN column))))) (. .)))
Backbone is another name for the vertebral column.