When was the German battleship Bismarck launched?
user
In August 1940.
assistant
When was it scuttled?
user
In May 1941.
assistant
What was the name of the builder?
user
The Blohm and Voss shipyard.
assistant
How fast could it go?
user
It could go a maximum of 31 knots. 
How fast is 31 knots?
assistant
When was the German battleship Bismarck launched?
user
In August 1940.
assistant
When was it scuttled?
user
In May 1941.
assistant
What was the name of the builder?
user
The Blohm and Voss shipyard.
assistant
How fast could it go?
user
21 knots.
assistant
When was the German battleship Bismarck launched?