Instruct: Classify Amazon reviews into positive or negative sentiment
Query: UNMASKED

I READ KINDLE BOOKS TO ESCAPE THE GRIM ROUTINE OF LIFE. WHY SPOIL IT?SPOILER ALERT:I DON'T BUY A BOOK TO ESCAPE REALITY, TO HAVE THE HEROINE BADLY SCARRED BY SMALLPOX TOWARD THE END. A PERFECT BOOK FOR ME WAS UTTERLY SPOILED BY THIS ENDING.