( ( ( ( Quantum Mechanics ) and ) ( Atomic PhysicsII ) ) . )
(ROOT (NP (NP (NP (NNP Quantum) (NNP Mechanics)) (CC and) (NP (NNP Atomic) (NNP PhysicsII))) (. .)))
Quantum Mechanics and Atomic PhysicsII.
(ROOT (S (NP (NP (DT The) (JJ specialized) (NN study)) (PP (IN of) (NP (NP (DT the) (NN motion)) (PP (IN of) (NP (NP (NNS objects)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADJP (JJ atomic/subatomic) (PP (IN in) (NP (NN size)))))))))))) (VP (VBZ is) (VP (VBN called) (NP (NN quantum) (NNS mechanics)))) (. .)))
The specialized study of the motion of objects that are atomic/subatomic in size is called quantum mechanics.