(S (S (BASENP (DT Two) (NNS explosions)) (VP (VBD were) (VP (VP (VBN heard) (PP (IN in) (NP (BASENP (DT the) (NN city)) (PP (IN of) (BASENP (BASENP (NNP La) (NNP Paz)) (COMMA ,) (BASENP (NNP Bolivia))))))) (PP (PP (IN on) (NP (BASENP (NNP Tuesday) (NN night)) (COMMA ,) (BASENP (NNP March) (NN 22)))) (CC and) (PP (IN in) (NP (BASENP (DT the) (JJ early) (NN morning)) (NP (BASENP (NNP Wednesday)) (COMMA ,) (BASENP (NNP March) (NN 23))))))))) (PERIOD .))