(S (S (BASENP (DT The) (NN eruption)) (VP (VBZ has) (VP (VBN created) (NP (NP (BASENP (DT a) (JJ large) (NN hole)) (PP (IN in) (BASENP (DT the) (NN glacier)))) (CONJP (COMMA ,) (CONJP (ADVP (RB as) (RB well)) (IN as))) (NP (BASENP (DT a) (NN fissure)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBG forming) (PP (IN under) (NP (BASENP (DT the) (NN glacier)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (ADVP (RB now)) (ADJP (RB around) (JJ long))))))))))))))))) (PERIOD .))