( Topics ( ( include ( ( ( ( ( ( ( ( ( ( ( electromagnetism , ) circuits ) , ) ( electromagnetic waves ) ) , ) optics ) , ) relativity ) , ) and ) ( modern physics ) ) ) . ) )
(ROOT (S (NP (NNS Topics)) (VP (VBP include) (NP (NP (NN electromagnetism)) (, ,) (NP (NNS circuits)) (, ,) (NP (JJ electromagnetic) (NNS waves)) (, ,) (NP (NNS optics)) (, ,) (NP (NN relativity)) (, ,) (CC and) (NP (JJ modern) (NNS physics)))) (. .)))
Topics include electromagnetism, circuits, electromagnetic waves, optics, relativity, and modern physics.
(ROOT (S (NP (NNS Optics)) (VP (VBZ explains) (NP (NP (DT the) (NN behavior)) (PP (IN of) (NP (JJ visible) (ADJP (JJ light) (CC and) (JJ electromagnetic)) (NNS waves))))) (. .)))