I know how to sound out Cyrillic. I know very little Russian... usually not enough to tell if the language is Russian or some other Slavic language. But I can

I know how to sound out Cyrillic. I know very little Russian... usually not enough to tell if the language is Russian or some other Slavic language. But I can still read. You see cognates every 10 or 15 words. I read this link for 10 minutes, and I was wondering why it was spelled "golrum" since the Rattlesnake makes an R sound at the beginning of a triplet. Shouldn't he have used the empty "O" character on the second one? Wish I could find something like this for Greek.