(S (S (BASENP (NN Five) (NNP Vancouver) (NNS rivers)) (VP (VBD were) (PP (IN in) (NP (BASENP (NN danger)) (PP (IN of) (NP (BASENP (NN flooding)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (BASENP (NN rain)) (VP (VP (VP (VBD fell) (PP (IN at) (NP (BASENP (NN 10) (NN mm)) (BASENP (DT an) (NN hour))))) (PP (IN for) (NP (QP (ADVP (RBR more) (IN than)) (NN six)) (NNS hours)))) (PP (IN at) (BASENP (NN midday)))))))))))) (PERIOD .))