Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrible! Hopelessly contrived attempt at humor; very boring

What a waste! The author tried hard to be funny, but fell far short of the mark. It was ridiculously unfunny, a very dull mystery. It might (might!) have been okay if the author hadn't tried so hard to make every paragraph witty, but it was a complete and total waste of both time and money.