(S (S (PP (VBG According) (PP (TO to) (BASENP (NNP Rijsberman)))) (COMMA ,) (S (NP (EX there)) (VP (VBP are) (NP (NP (BASENP (NN two) (NNS types)) (PP (IN of) (BASENP (NNS shortages)))) (COLON :) (NP (NP (BASENP (DT those)) (VP (VBN observed) (PP (IN in) (NP (BASENP (NNS regions)) (SBAR (WHADVP (WRB where)) (S (BASENP (NN water)) (VP (VBZ is) (VP (VBN over-exploited) (COMMA ,) (S (VP (VBG causing) (UCP (NP (BASENP (DT a) (NN lowering)) (PP (IN of) (BASENP (NN groundwater) (NNS levels)))) (CC and) (S (BASENP (NNS rivers)) (VP (TO to) (VP (VB dry) (PRT (RP up)))))))))))))))) (CONJP (COLON ;) (CC and)) (NP (BASENP (DT those)) (PP (IN in) (NP (BASENP (NNS countries)) (VP (VP (VBG lacking) (S (BASENP (DT the) (ADJP (JJ technical) (CC and) (JJ financial)) (NNS resources)) (SBAR (S (VP (TO to) (VP (VB capture) (BASENP (NN water)))))))) (COLON -) (PP (IN despite) (BASENP (PRPD its) (NN abundance)))))))))))) (PERIOD .))