(S (S (BASENP (NNS Reports)) (VP (VBP indicate) (SBAR (IN that) (S (S (NP (BASENP (JJ many) (NNS residents)) (PP (IN of) (BASENP (DT the) (JJ vast) (NN region)))) (VP (VP (VBP rely) (PP (ADVP (RB heavily)) (PP (IN on) (BASENP (JJ poorly-maintained) (NN river) (NNS ferries))))) (PP (IN for) (BASENP (JJ cheap) (NN transportation))))) (COMMA ,) (SBAR (IN since) (S (BASENP (JJ many) (NNS areas)) (VP (VP (VBP are) (ADJP (JJ inaccessible))) (PP (IN by) (BASENP (NN road)))))))))) (PERIOD .))