( ( IK1QFK ( RADIO ( WAVES ( BELOW 22 ) ) ) ) ( KHZ . ) )
(ROOT (S (NP (NNP IK1QFK) (NNP RADIO) (NNP WAVES) (NNP BELOW) (CD 22)) (VP (VBP KHZ)) (. .)))
IK1QFK RADIO WAVES BELOW 22 KHZ.
(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))) (. .)))