( ( Waves ( 55 ( feet high ) ) ) ( , ( ( crest ( to trough ) ) ( , ( ( struck ( ( the ( northeast coast ) ) ( of Hawaii ) ) ) . ) ) ) ) )
(ROOT (S (NP (NP (NNS Waves)) (ADJP (CD 55) (NNS feet) (JJ high))) (, ,) (S (VP (VB crest) (PP (TO to) (NP (NN trough))))) (, ,) (VP (VBD struck) (NP (NP (DT the) (NN northeast) (NN coast)) (PP (IN of) (NP (NNP Hawaii))))) (. .)))
Waves 55 feet high, crest to trough, struck the northeast coast of Hawaii.
(ROOT (S (NP (PRP You)) (VP (VBP call) (SBAR (S (NP (NP (DT the) (ADJP (JJ high) (CC and) (JJ low)) (NNS points)) (PP (IN of) (NP (JJ transverse) (NNS waves)))) (VP (VP (VBZ crests)) (CC and) (VP (VBZ troughs)))))) (. .)))