( ( The ( worm SOUND ) ) ( ( becomes ( unbearably loud ) ) . ) )
(ROOT (S (NP (DT The) (NN worm) (NN SOUND)) (VP (VBZ becomes) (ADJP (RB unbearably) (JJ loud))) (. .)))
The worm SOUND becomes unbearably loud.
(ROOT (S (S (VP (VBN Amplified))) (, ,) (NP (PRP it)) (VP (VBZ becomes) (SBAR (S (NP (NNP louder)) (VP (VBZ happens) (VP (VB do) (NP (DT the) (NN sound)) (PP (IN during) (NP (DT a) (NN resonance)))))))) (. .)))