(S (S (BASENP (PRP It)) (VP (VP (VBZ is) (ADVP (RB now))) (PP (IN in) (NP (BASENP (DT a) (JJ circular) (NN orbit)) (NP (BASENP (NN 102) (NNS kilometres)) (PP (IN from) (BASENP (DT the) (NNP Moon)))))))) (PERIOD .))