( Those ( ( frequencies ( in ( ( the ( electromagnetic spectrum ) ) ( that ( are ( associated ( with ( radio ( wave propagation ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT Those)) (VP (VBZ frequencies) (PP (IN in) (NP (NP (DT the) (JJ electromagnetic) (NN spectrum)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBN associated) (PP (IN with) (NP (NN radio) (NN wave) (NN propagation)))))))))) (. .)))
Those frequencies in the electromagnetic spectrum that are associated with radio wave propagation.
(ROOT (S (NP (DT The) (JJ electromagnetic) (NN spectrum)) (VP (VBZ represents) (NP (NP (DT the) (JJ full) (NN range)) (PP (IN of) (NP (NP (NN frequency)) (PP (IN of) (NP (JJ electromagnetic) (NNS waves))))))) (. .)))