Moreover , the post of mayor in the three German city-states is equivalent to that of a Ministerprasident -LRB- head of government of one of Germany 's constitutive States -RRB- and the respective post is referred to as Regierender Burgermeister -LRB- Governing Mayor -RRB- in Berlin and Erster Burgermeister -LRB- First Mayor -RRB- in Hamburg .
These positions are given to a person by letters patent , which are a special letter from the monarch .
These positions are given to a person by letters patent , which are a special letter from the monarch .
Make the sentence simple: Moreover , the post of mayor in the three German city-states is equivalent to that of a Ministerprasident -LRB- head of government of one of Germany 's constitutive States -RRB- and the respective post is referred to as Regierender Burgermeister -LRB- Governing Mayor -RRB- in Berlin and Erster Burgermeister -LRB- First Mayor -RRB- in Hamburg . Output: