(S (S (NP (BASENP (JJ Electrical) (NNS fields)) (PP (IN inside) (BASENP (DT the) (JJ cosmic) (NN dust) (NN analyzer)))) (VP (VP (VBD separated) (BASENP (DT the) (JJ various) (NNS constituents))) (PP (IN of) (BASENP (DT the) (NN impact) (NN cloud))))) (PERIOD .))