@mar77i @Viking I don't have Chinese input installed on this phone so I can't type it, but the fourth character is "man", the word being "zungman" (Chinese). @Viking typed "caa" which is indeed fork. The last word is room, so, "I am a Chinese room". If the words for Chinese and room combined have some extended meaning, I don't know what it is.
Also, I only really can transliterate in canto which would be "ngo si zung man fong", I think the Mandarin would be roughly "wo shi zhong wen fong"