claim: Georgians arose from the ancient Mongolia civilizations.
evidence: Yellow Sisters is a Czech female vocal quartet , known for singing a cappella .. a cappella. a cappella. Its members are Antonia Tereza Nyass , Barbora Vaculikova , Lucie Hawa Goldin and Lena Yellow -- Lenka Jankovska .. Their singing is inspired by many musical styles and regions -LRB- from African traditional to American gospel , reggae , jazz or funk -RRB- .. They call themself `` sound illusionists '' and their repertoire is purely self-composed .. Their sound is quite experimental and playful , based on the rhythms of the Czech language .. They are known for their strong support for human rights .. They have been performing since 2005 -- their first demo CD was produced in that year .