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.

Zurenborg is an area in south-east Antwerp largely developed between 1894 and 1906 that features a high concentration of townhouses in Art Nouveau and other fin-de-siecle styles.
Which is the kind of art style of Zurenborg?