The price of the most expensive book ever purchased?
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The author of the book has a quality book.
The author wrote the book .
The price of the most expensive book ever purchased?</s>The [unused1]author                [unused2] of the book has a quality book.
The price of the most expensive book ever purchased?</s>The author of the book has a quality book.
The price of the most expensive book ever purchased?</s>The [unused1]author                [unused2] wrote the book .
The price of the most expensive book ever purchased?</s>The author wrote the book .
The price of the most expensive book ever purchased?</s>[unused1]author[unused2],0,[unused1]author[unused2],[unused1]author[unused2],0,book,book,has quality,[unused1]author[unused2],book,0,book
The price of the most expensive book ever purchased?</s>author,0,author,author,0,book,book,has quality,author,book,0,book