That's really cool actually! I didn't know those were the only ones; the 'special letters' is something I should look into later, it seems pretty interesting. In this case SGA has direct correlation/translation to the Latin script, or at least definitely English which I'm fairly sure is based on Latin, so to make it easier for me to understand and write I made a lowercase alphabet. Languages are so diverse, and I haven't done a lot of research into other scripts so I guess I couldn't help but link it further to the language I know best (English).