premise: How to clean potatoes<br>Start with clean hands. Be sure to wash your hands first using an antibacterial soap, and to rinse them well. You don't want to transfer any bacteria to your clean potatoes.
hypothesis: You want to be sure to wash your hands first using an antibacterial soap, and to rinse them well with brown mud.
reason: It's definitely incorrect because you would obviously rinse your hands with water and not mud. It's difficult because the system probably does not know that you typically rinse your hands with water, so it assumes the statement is neither correct/incorrect since brown mud is never mentioned.