Represent the dialog for retrieving similar scenarios Speaker1: I've just discovered that my family name was Kotovsky before the war
Speaker3: How did you discover that?
Speaker1: I found some old documents
Speaker1: And I talked to my grandmother
Speaker2: They changed the name?
Speaker1: Apparently
Speaker1: My grandmother told me it was for migration reasons
Speaker1: They wanted to stay in Belgium 
Speaker1: Otherwise they would have been forced to go back to the Eastern Europe 
Represent the dialog scenario for retrieval Speaker1 learned that before the war her family name was Kotovsky. 
Represent the dialog scenario for retrieval Speaker1 is coming back in 5 minutes as he had to queue for 20 minutes.