, around the halfway mark it takes an abrupt turn into glucose sentimentality and laughable contrivance . 
(ROOT (S (, ,) (PP (IN around) (NP (DT the) (JJ halfway) (NN mark))) (NP (PRP it)) (VP (VBZ takes) (NP (NP (DT an) (JJ abrupt) (NN turn)) (PP (IN into) (NP (NP (NN glucose) (NN sentimentality)) (CC and) (NP (JJ laughable) (NN contrivance)))))) (. .)))
(ROOT (S (, ) (PP (IN ) (NP (DT ) (JJ ) (NN ))) (NP (PRP )) (VP (VBZ ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NP (NN ) (NN )) (CC ) (NP (JJ ) (NN )))))) (. )))