Question: Jonas Černius was appointed to be Prime Minister of Lithuania by an official in which government office?
Sentence (from "Swedish governmental line of succession"): The Swedish constitution of 1974 allows the Prime Minister of Sweden to appoint one of the Ministers in the cabinet as Deputy Prime Minister ("biträdande statsminister", also unofficially known as "vice statsminister", "Vice Prime Minister"), in case the Prime Minister for some reason is prevented from performing his or her duties.
Relevant evidence: No