(S (S (BASENP (JJR Smaller) (NNS eruptions)) (VP (VBD were) (VP (VP (VBN seen) (SBAR (IN as) (S (BASENP (DT the) (NNP ROV)) (VP (VBD traveled))))) (COMMA ,) (S (VP (VBG making) (S (BASENP (DT the) (NN leak) (NNS locations)) (VP (VB vary) (NP (NP (PP (PP (IN from) (BASENP (NN 50))) (PP (TO to) (BASENP (NN 60)))) (NNS feet)) (PP (IN from) (BASENP (DT the) (JJ damaged) (NN well))))))))))) (PERIOD .))