Premise: Tansu Çiller (] ; born 24 May 1946) is a Turkish academician, economist, and politician who served as the 22nd Prime Minister of Turkey from 1993 to 1996. She is Turkey's first and only female prime minister to date. As the leader of the True Path Party, she went on to concurrently serve as Deputy Prime Minister of Turkey and as Minister of Foreign Affairs between 1996 and 1997.
Hypothesis: The leader of the True Path Party wasn't the twenty-third prime minister of Turkey.