sentences:  It was one of the three companies organized according to this model in 1923, together with Dobrolyot and Ukrpovitroshliach.Every person or organization could buy Zakavia stocks, and those who owned stocks above a threshold amount could use an airplane built for their money in any way they need unless the airplane was needed for military purposes.In 1925, civil aviation of Georgia and Azerbaijan were merged into the united "Zakavia" society.