( ( At night ) ( , ( ( radiational cooling ) ( ( ( lowers ( the temperature ) ) ( below ( the ( freezing point ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (NN night))) (, ,) (NP (JJ radiational) (NN cooling)) (VP (VBZ lowers) (NP (DT the) (NN temperature)) (PP (IN below) (NP (DT the) (JJ freezing) (NN point)))) (. .)))
At night, radiational cooling lowers the temperature below the freezing point.
(ROOT (S (NP (NNP Antifreeze)) (VP (VBZ lowers) (S (NP (PRP it)) (NP (NP (DT the) (JJ freezing) (NN temperature)) (PP (IN of) (NP (NP (DT the) (NN water)) (PP (IN in) (NP (NN car) (NNS radiators)))))))) (. .)))