revision preference src: First of all, she does not agree with the assertion that Marco Polo might never been to China because he never picked up any Chinese or Mongolian place-names, but has used Persian names of the directions and locations in his account instead. <SEP> tgt: First of all, she does not agree with the assertion that Marco Polo might never have been to China because he never picked up any Chinese or Mongolian place names but used Persian names of the directions and locations in his account instead.