Complex sentence: As it is unclear which of these is her given (first) and surname (last), according to the Japanese tradition of placing the family name first she is either "Miss Yoshiko Kyoko" or "Kyoko Yoshiko".
Split into simpler sentences: As it is unclear which of these is her given name and surname. According to the Japanese tradition of placing the family name first she is either "Miss Yoshiko Kyoko" or "Kyoko Yoshiko".