YOU SAID:
Please return three library books.
INTO JAPANESE
3 つの図書館の本を返してください。
BACK INTO ENGLISH
Please return the books in the library of the three.
INTO JAPANESE
3 つの図書館に本を返してください。
BACK INTO ENGLISH
Please return the book to the library three.
INTO JAPANESE
3 図書館に本を返して下さい。
BACK INTO ENGLISH
3 Please return the book to the library.
INTO JAPANESE
3 は、図書館に本を返して下さい。
BACK INTO ENGLISH
3, return library books.
INTO JAPANESE
3、戻り図書館の本。
BACK INTO ENGLISH
3, return library books.
That didn't even make that much sense in English.