(S (S (NP (DT The) (NP (ADJP (BASENP (NN 5,023) (NN m)) (JJ high)) (NN volcano))) (VP (VP (VP (VBD spat) (NP (NP (BASENP (NN lava)) (COMMA ,) (BASENP (NNS stones))) (CC and) (BASENP (NN ash)))) (PP (IN for) (BASENP (JJ several) (NNS hours)))) (PP (IN on) (BASENP (NNP Wednesday) (NN night))))) (PERIOD .))