Yes you can use Ra4 as input.

No i don't speek Greek... i may understand few words here and there but... yiissh.. hehe as the english expression said ... it's Greek to me Quebecer french says... it's Chinese to me... i heard also something like It's Gobledagook to me. I guess it depend where you're located.

I speak French (native language) and a sort of English with few mistakes