Given the task definition and input, reply with output. Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

SinnerSchrader was founded in 1996 by Oliver Sinner and Matthias Schrader in Hamburg, Germany by combining a marketing business and a software company that both operated under the sinner + schrader name.
What city was SinnerSchrader formed in?