 Interesting. Do you want to hear his description of that test? Yeah, absolutely. What do you do in this test? A lot of things. So, for example, they may have you say as many words as you can in a minute that start with F. Block building, retrieval. I may say cup and have you recall it three minutes later. Trail drawing. These are done with a professional PhD in neuropsychology. It has nothing to do with psychiatry. And we can tell if you have that. It's four hours.