Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Markers could last for a while longer.

We go through these markers like water at our business. Our only complaint about these markers is that we never seen to get too much writing out of them before they die. With such a large volume for ink within the body of the marker, it seems like they should last a bit longer...As far as markers go, these are the best out there, but they still aren't fantastic.