(S (S (S (BASENP (NN One) (NN report)) (VP (VBZ says) (SBAR (S (BASENP (PRP it)) (VP (VBD crashed) (PP (IN into) (BASENP (DT a) (NN ravine)))))))) (SBAR (IN while) (S (BASENP (DT another)) (VP (VBZ states) (SBAR (S (BASENP (PRP it)) (VP (VBD crashed) (PP (IN into) (BASENP (DT a) (JJ swampy) (NN area)))))))))) (PERIOD .))