What is the most expensive book ever sold?
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The book has a quality editorial board.
The editorial board of Aethel publishes the book .
What is the most expensive book ever sold?</s>The book has a quality [unused1]editorial board                [unused2] .
What is the most expensive book ever sold?</s>The book has a quality editorial board.
What is the most expensive book ever sold?</s>The [unused1]editorial board                [unused2] of Aethel publishes the book .
What is the most expensive book ever sold?</s>The editorial board of Aethel publishes the book .
What is the most expensive book ever sold?</s>book,0,book,book,has quality,[unused1]editorial board[unused2],[unused1]editorial board[unused2],0,book,[unused1]editorial board[unused2],0,[unused1]editorial board[unused2]
What is the most expensive book ever sold?</s>book,0,book,book,has quality,editorial board,editorial board,0,book,editorial board,0,editorial board