(S (S (ADVP (RB However)) (COMMA ,) (S (S (NP (BASENP (NNP John) (NNP Paul) (POS 's)) (NN visit)) (VP (VBD was) (PP (IN on) (BASENP (DT a) (JJ pastoral) (NN basis))))) (COMMA ,) (SBAR (IN so) (S (BASENP (DT this)) (VP (VBZ is) (VP (VBN set) (S (VP (TO to) (VP (VB be) (NP (NP (NP (BASENP (DT the) (JJ first) (NN state) (NN visit)) (PP (TO to) (BASENP (DT the) (NNP UK)))) (PP (IN by) (BASENP (DT a) (NN pope)))) (SBAR (WHPP (IN in) (WHNP (WDT that))) (S (BASENP (PRP it)) (VP (VP (VBZ is) (BASENP (DT the) (NN first))) (S (VP (TO to) (VP (VB follow) (BASENP (DT an) (JJ official) (NN invitation)))))))))))))))))) (PERIOD .))