Question: Dobi-III is the third and the last aircraft designed by Lithuanian aviator Jurgis Dobkevičius, on June 8, 1926 it crashed, killing its designer, at which International Airport, is the  second-busiest civil airport in Lithuania after Vilnius Airport and the fourth-busiest in the Baltic states?
Sentence (from "Dobi-II"): It was tested in October 1923.
Relevant evidence: No