I think it's about the sound. Something with "che-ia", something with "Swen"... Like, if you really don't know about the world, or the regions of aforementione

I think it's about the sound. Something with "che-ia", something with "Swen"... Like, if you really don't know about the world, or the regions of aforementioned countries, which could very well be, then I see the possibility. When I revisit the words I kept confusing when I first started learning German, I'm like, did I have mental problems or what!? :)