( The ( ( temperature ( ( at which ) ( ( water condenses ) ( is ( the ( Dew Point ) ) ) ) ) ) . ) )
(ROOT (NP (DT The) (NN temperature) (SBAR (WHPP (IN at) (WHNP (WDT which))) (S (NP (NN water) (NNS condenses)) (VP (VBZ is) (NP (DT the) (NNP Dew) (NNP Point))))) (. .)))
The temperature at which water condenses is the Dew Point.
(ROOT (S (NP (NP (NNP Dew)) (VP (VBG forming) (PP (IN on) (NP (NNS plants))) (PP (IN during) (NP (DT a) (JJ cold) (NN night))))) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (NN water) (NN condensing))))) (. .)))