(SINV (SINV (QT (DQL ``) (QTC (S (BASENP (PRP This)) (VP (VP (VBZ marks) (BASENP (DT the) (JJ first) (NN time))) (SBAR (IN that) (S (BASENP (NNS scientists)) (VP (VBP have) (VP (VP (VBN seen) (NP (BASENP (NN evidence)) (PP (IN of) (NP (BASENP (NN water)) (PP (IN in) (BASENP (JJ liquid) (NN form))))))) (ADVP (ADVP (RB so) (RB close)) (PP (TO to) (NP (BASENP (DT the) (NN surface)) (PP (IN on) (NP (BASENP (DT another) (NN body)) (PP (IN beyond) (BASENP (NNP Earth)))))))))))))) (COMMA ,)) (DQR '')) (SINV (VP (VBD said)) (BASENP (NNP Cassini) (NN scientist) (NNP Torrence) (NNP Johnson)))) (PERIOD .))