Before revision:  To better understand our tool's benefits, we conducted a qualitative user study , which shows that CNN Explainer can help users more easily understand the inner workings of CNNs, and is engaging and enjoyable to use.
After revision:  To better understand our tool's benefits, we conducted a qualitative user study shows that CNN Explainer can help users more easily understand the inner workings of CNNs, and is engaging and enjoyable to use.