( ( This ( crude model ) ) ( ( ( ( is ( that ( of ( the ( element carbon ) ) ) ) ) , ) ( with ( ( ( ( ( ( six protons ) , ) ( six neutrons ) ) , ) and ) ( six electrons ) ) ) ) . ) )
(ROOT (S (NP (DT This) (JJ crude) (NN model)) (VP (VBZ is) (NP (NP (DT that)) (PP (IN of) (NP (DT the) (NN element) (NN carbon)))) (, ,) (PP (IN with) (NP (NP (CD six) (NNS protons)) (, ,) (NP (CD six) (NNS neutrons)) (, ,) (CC and) (NP (CD six) (NNS electrons))))) (. .)))
This crude model is that of the element carbon, with six protons, six neutrons, and six electrons.
(ROOT (S (NP (NNP Carbon) (NNS atoms)) (VP (VBP have) (NP (NP (CD six) (NNS protons)) (CC and) (NP (NP (NNS electrons)) (NP (DT each))))) (. .)))