Some parliamentary republics (like South Africa, Botswana and Myanmar) have fused the roles of the head of state with the head of government (like in a presidential system), while having the sole executive officer, often called a president, being dependent on the Parliament's confidence to rule (like in a parliamentary system). While also being the leading symbol of the nation, the president in this system acts mostly as a prime minister since the incumbent must be a member of the legislature at the time of the election, answer question sessions in Parliament, avoid motions of no confidence, etc.