> russian oya ec aec c apaao oe coopo, a e pac o p. > ukrainian aya c aec  oie i coopi, a ei ooac  ea. > polish aya  oapae  oye oo aei, a   e ee. > bulgarian aaa e opoa c o o aa, a a apeca a ya. the reason why bulgarian has only one word and some prepositions which can be understood by the speakers of the other 3 is because bulgarian is a different language, it's a slavo-greek hybrid. the other 3 are just dialects of the same language that use slightly different pronunciations or shared/outdated synonyms for the same words.
Greece