Actually, it's good to do it while practicing together, but it was difficult to follow along at the same time when I was still immature. But I think it would be good to watch it repeatedly. I think it was an important lecture because there aren't many places where you can listen to Korean text analysis, especially topic and sentiment analysis, online. I think I'll understand it a little better and be able to use the code directly if I watch it one more time. And it was really good that they gave me all the code in advance as materials.