Chinese<br>Sally bought a book from the library. She opened it to page 3. She read the words but they didn't make since to her. She looked at the cover. She got a Chinese book by accident.
Sally was able to read Chinese.
The text states that Sally was unable to read the Chinese book.  Therefore, Sally definitely cannot read Chinese.  This is tricky because the text is about a book in Chinese, so the AI might assume Sally can read Chinese.
( z1 possible :ARG1 ( z2 read :ARG0 ( z3 person :name ( z4 name :op "Sally" ) ) :ARG3 ( z5 language :name ( z6 name :op "Chinese" ) ) ) )