( Tabulate ( ( ( the ( ( frequencies and ) periods ) ) ( of ( the wave ) ) ) ( ( forms ( as ( measured ( on ( the scope ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB Tabulate)) (NP (NP (DT the) (NNS frequencies) (CC and) (NNS periods)) (PP (IN of) (NP (DT the) (NN wave)))) (VP (VBZ forms) (SBAR (IN as) (S (VP (VBN measured) (PP (IN on) (NP (DT the) (NN scope))))))) (. .)))
Tabulate the frequencies and periods of the wave forms as measured on the scope.
(ROOT (S (NP (NP (DT The) (NN frequency)) (PP (IN of) (NP (DT a) (NN wave)))) (VP (VBZ is) (NP (NP (DT the) (NN reciprocal)) (PP (IN of) (NP (NP (DT the) (NN period)) (PP (IN of) (NP (DT the) (NN wave))))))) (. .)))