(S (S (S (BASENP (PRP She)) (VP (VBZ has) (NP (BASENP (DT an) (JJ American) (NN doppelganger)) (PRN (COMMA ,) (BASENP (NNP Miranda) (NNP Leek)) (COMMA ,))))) (CC and) (S (BASENP (DT the) (NN two)) (VP (VBP are) (VP (ADVP (RB sometimes)) (VP (VP (VBN mistaken) (PP (IN for) (BASENP (DT each) (NN other)))) (PP (IN at) (BASENP (JJ international) (NNS competitions)))))))) (PERIOD .))