(S (S (NP (BASENP (JJ Torrential) (NNS rains)) (VP (VBG lasting) (BASENP (QP (RB nearly) (DT a)) (NN week)))) (VP (VP (VBD combined) (PP (IN with) (BASENP (NN snow-melt)))) (S (VP (TO to) (VP (VB create) (PP (IN in) (NP (NP (BASENP (DT the) (JJS worst) (NNS floods)) (PP (IN in) (BASENP (NN 20) (NNS years)))) (PP (IN in) (BASENP (DT the) (NNP Caucasus) (NN republic)))))))))) (PERIOD .))