Instruct: Classify an Amazon review into positive or negative sentiment.
Query: This is a FABULOUS thermos!

I'm a law student and I bike to school 3 miles each day. I pretty much can't function without my coffee. Every morning I can brew a pot, dump most of it in this thermos, and screw it shut. I can put it in my backpack (next to my laptop and books) without a single worry that it will leak. And I can ride my bike to school and have piping hot coffee for an entire day.It's hard to find things that work. This thing works as advertised. I would pay $50 for it. It's a steal at $20.