(S (S (BASENP (NNP Swiss) (NNS officials)) (VP (VBD said) (SBAR (S (BASENP (PRP it)) (VP (VP (VBZ is) (ADJP (JJ common))) (SBAR (IN for) (S (BASENP (DT this) (NN process)) (VP (TO to) (VP (VB take) (BASENP (JJ several) (NNS months))))))))))) (PERIOD .))