Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Appalling gall!

What appalling gall for the Ehrlichs to title a book "Betrayal of Science and Reason". Their doomsaying predictions have repeatedly turned out wrong, yet people still buy their nonsense.Some environmental issues are real, but it's hard to find them amidst the rubbish, and the solutions lie in technology and markets, not control and going backwards.