Hey are there any important facts about germanys politic? you

1.german is a republic
2.it is a federal system
3.it is a constitutional system
4.elections are held every four years
5.Elections are based on proportional representation
6.There are two federal houses of parliament
7.Chancellors are not directly electe
8.Chancellors are not directly electe
9. In recent years politics has become more unpredictable
10.The government is still split between two cities