Feedback on my first product for language learners?

Hi! I'm building a service for language learners to help learn grammar. It's a tool that, given a sentence in a foreign language, explains its grammar. I'm planning to develop it into explaining songs, so you can learn languages while listening to your favorite music. For now, here's a very raw prototype that explains individual sentences in foreign languages: https://wordplay-rho.vercel.app/ What do you think about the concept? Did you ever encounter the problem of conveniently understanding grammar of a language you're learning? Would love any thoughts and feedback about the concept!