Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Expensive, probably worth it

This is one of a zillion shapes available. It's long and skinny. I use it to label third-cut manila folders and DVD envelopes and it does a good job. It took me a while to learn to breathe on the backer as you remove it. This keeps the backer from sticking to you finger as you put it in the wastebasket.