Question: Stefan Mokrzecki was once a member of armed forces of what republic that was created in 1920?
Sentence (from "Republic of Central Lithuania"): The Republic of Central Lithuania or Middle Lithuania (Polish: "Republika Litwy Środkowej" , Lithuanian: "Vidurio Lietuvos Respublika" , Belarusian: Рэспубліка Сярэдняе Літвы / "Respublika Siaredniaje Litvy" ), or Central Lithuania (Polish: "Litwa Środkowa" , Lithuanian: "Vidurio Lietuva" or "Vidurinė Lietuva" , Belarusian: Сярэдняя Літва / "Siaredniaja Litva" ), was a short-lived political entity, which did not gain international recognition.
Relevant evidence: Yes