Yes, I know who Sun Ra is. Because I didn't see ^Ra$ in my list of common nouns then it means that there hasn't been a comment just about Ra. But now there has:

Yes, I know who Sun Ra is. Because I didn't see ^Ra$ in my list of common nouns then it means that there hasn't been a comment just about Ra. But now there has: Ra. Ra. Ra. 4 times total now :-)