(S (S (BASENP (NNP Cassini)) (VP (VP (VBD was) (VP (VBN launched) (PP (IN in) (BASENP (NN 1997))))) (CONJP (COMMA ,) (CC and)) (VP (VP (VBD entered) (NP (BASENP (NN orbit)) (PP (IN around) (BASENP (NNP Saturn))))) (PP (IN in) (BASENP (NN 2004)))))) (PERIOD .))