(S (S (NP (BASENP (NNP NASA) (POS 's)) (BASENP (NNP Cassini) (NN orbiter))) (VP (VBZ has) (VP (VP (VP (VP (VBN sent) (PRT (RP back))) (BASENP (JJ remarkable) (NNS images))) (PP (IN from) (BASENP (NNP Saturn)))) (COMMA ,) (S (VP (VBG revealing) (SBAR (IN that) (S (NP (BASENP (DT the) (NN planet) (POS 's)) (BASENP (JJ famous) (NNS rings))) (VP (VBP are) (ADJP (ADJP (ADVP (RB far) (RBR more)) (JJ bumpy)) (SBAR (IN than) (S (VP (VBN expected))))))))))))) (PERIOD .))