( ( ( Quantum ( Classical ( Molecular ( Dynamics ( Chemical reactions ) ) ) ) ) ( involving ( bond ( ( formation and ) breaking ) ) ) ) ( ( are ( outside ( ( the purview ) ( of ( classical ( molecular ( dynamics simulations ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Quantum) (NNP Classical) (NNP Molecular) (NNPS Dynamics) (NNP Chemical) (NNS reactions)) (PP (VBG involving) (NP (NN bond) (NN formation) (CC and) (NN breaking)))) (VP (VBP are) (PP (IN outside) (NP (NP (DT the) (NN purview)) (PP (IN of) (NP (JJ classical) (JJ molecular) (NNS dynamics) (NNS simulations)))))) (. .)))
Quantum Classical Molecular Dynamics Chemical reactions involving bond formation and breaking are outside the purview of classical molecular dynamics simulations.
(ROOT (S (NP (JJ Catabolic) (NNS reactions)) (VP (VBP involve) (S (VP (VBG breaking) (NP (NNS bonds))))) (. .)))