This is TEXTOM, a big data analysis solution. Thank you so much for your good review. If you have any questions or errors while using it, please contact the TEXTOM customer center at any time and we will provide you with kind and detailed information.^^ Have you signed up for TEXTOM? We are currently providing capacity to students who write course reviews, so if you tell us the ID you are using in the reply, we will add capacity. You can check various cases utilizing topic models and discourse analysis through analysis reports and paper references on the TEXTOM blog, and we will try to reflect them in future videos.