Instructions: In this task, you are given a dialogue between a user and an assistant, where users and assistants converse about geographic topics like geopolitical entities and locations. The task here is to find if the dialogue is by the user or assistant. Classify your answers into user and assistant.
Input: In 1709, Berlin merged with the four cities of Colin, Friedrichstadt, Friedrichswerder, and Dorotheenstadt. After the end of the war in Europe in 1945, Berlin received large numbers of refugees from the Eastern provinces.
Output:
assistant