the high seas that works better the less the brain is engaged 
(ROOT (NP (NP (DT the) (JJ high) (NNS seas)) (SBAR (WHNP (WDT that)) (S (VP (VBZ works) (ADVP (RBR better)) (ADVP (ADVP (DT the) (RBR less)) (SBAR (S (NP (DT the) (NN brain)) (VP (VBZ is) (VP (VBN engaged)))))))))))
(ROOT (NP (NP (DT ) (JJ ) (NNS )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (ADVP (RBR )) (ADVP (ADVP (DT ) (RBR )) (SBAR (S (NP (DT ) (NN )) (VP (VBZ ) (VP (VBN )))))))))))