( ( ( ( Radio ( Sine Wave ) ) , ) ( ( 1984 , ) 7415 ) ) ( ( kHz 34 ) . ) )
(ROOT (S (NP (NP (NNP Radio) (NNP Sine) (NNP Wave)) (, ,) (NP (NP (CD 1984)) (, ,) (NP (CD 7415)))) (VP (VBP kHz) (NP (CD 34))) (. .)))
Radio Sine Wave, 1984, 7415 kHz 34.
(ROOT (S (NP (NNP Am) (NN radio) (NNS waves)) (VP (VBP exist) (PRT (RP in)) (NP (DT the) (ADJP (QP (CD 540) (TO to) (CD 1600))) (NN khz) (NN frequency) (NN range))) (. .)))