<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> A prime minister, also known as a premier, is the head of a cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system . In many systems, the prime minister selects and may dismiss other members of the cabinet, and allocates posts to members within the government . In most systems, the prime minister is the presiding member and chairman of the cabinet . In a minority of systems, notably in semi-presidential systems of government, a prime minister is the official who is appointed to manage the civil service and execute the directives of the head of state . </P> <P> In parliamentary systems fashioned after the Westminster system, the prime minister is the presiding and actual head of government and head of the executive branch . In such systems, the head of state or the head of state's official representative (often the monarch, president, or governor - general) usually holds a largely ceremonial position, although often with reserve powers . </P>

What level of government is the prime minister
find me the text answering this question