( ( ( ( ( ( The ( Bonneville area ) ) ( has ( been ( slow ( to date ) ) ) ) ) , ) but ) ( ( water temperatures ) ( are ( decreasing ( as ( we speak ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT The) (NNP Bonneville) (NN area)) (VP (VBZ has) (VP (VBN been) (ADJP (JJ slow) (PP (TO to) (NP (NN date))))))) (, ,) (CC but) (S (NP (NN water) (NNS temperatures)) (VP (VBP are) (VP (VBG decreasing) (SBAR (IN as) (S (NP (PRP we)) (VP (VBP speak))))))) (. .)))
The Bonneville area has been slow to date, but water temperatures are decreasing as we speak.
(ROOT (S (PP (IN As) (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (NN water) (NNS decreases))))) (, ,) (NP (DT the) (NN water) (NNS molecules)) (VP (VB slow) (PRT (RP down))) (. .)))