is as predictable as the tides 
(ROOT (VP (VBZ is) (ADJP (ADJP (RB as) (JJ predictable)) (PP (IN as) (NP (DT the) (NNS tides))))))
(ROOT (VP (VBZ ) (ADJP (ADJP (RB ) (JJ )) (PP (IN ) (NP (DT ) (NNS ))))))