(S (S (NP (BASENP (JJ International) (NNS observers)) (PP (IN from) (NP (BASENP (DT the) (NNP African) (NNP Union)) (CC and) (BASENP (DT the) (NNP Arab) (NNP League))))) (VP (VP (VBD said) (SBAR (IN that) (S (BASENP (DT the) (NN referendum)) (VP (VBD appeared) (S (VP (TO to) (VP (VB have) (VP (VBN gone) (ADVP (RB smoothly)))))))))) (CONJP (COMMA ,) (CC but)) (VP (VBP have) (VP (ADVP (RB yet)) (VP (TO to) (VP (VB make) (BASENP (PRPD their) (JJ final) (NNS reports)))))))) (PERIOD .))