Definition: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: What in the world was Jax Peters Lowell thinking when she wrote Chapter 17, "Rx for Health"? I cannot begin to express the fear and anxiety I felt when I saw Celebrex named as a drug that contains gluten. I stopped taking it immediately and began searching for a gluten-free alternative. I was so upset that all of my efforts as a celiac to live gluten-free were being undermined by my Celebrex. I had thought it was gluten-free! I found the website that Lowell mentions on page 394, Glutenfree Drugs.com, hoping to find a gluten-free alternative pain medication. Imagine my relief at seeing Celebrex on the list. I contacted Pfizer....no gluten! I Googled gluten and Celebrex.....NO Gluten! There are many responsible guides for celiacs. Lowell's book is certainly not one of them!
Output:
Negative