Q:Information:  - Stefan Iten ( born 5 February 1985 ) is a Swiss football defender , who plays for FC Winterthur in the Swiss Challenge League .  - The Canton of Zürich has a population (as of ) of . The canton is located in the northeast of Switzerland and the city of Zürich is the capital of the canton. The official language is German. The local Swiss German dialect called "Züritüütsch" is commonly spoken. In English the name of the canton is often written without an umlaut.  - The Swiss Challenge League or Brack.ch Challenge League is the second highest tier of the Swiss football league system. Ten teams play in the Challenge League. The winners of the league are promoted to the Super League, the bottom team is relegated to the 1. Liga Promotion.  - The Swiss football league system, is a series of interconnected leagues for association football clubs in Switzerland, with seven teams from Liechtenstein, and one each from exclaves of Germany and Italy, also competing. The system has a hierarchical format with promotion and relegation between leagues at different levels, allowing even the smallest club the possibility of ultimately rising to the very top of the system.   - FC Winterthur is a Swiss football club based in Winterthur, Canton of Zürich. They play in the Swiss Challenge League, the second highest tier of Swiss football. They play at the Schützenwiese Stadium.  - Winterthur is a city in the canton of Zürich in northern Switzerland. It has the country's sixth largest population, estimated at more than 100,000 people. Today Winterthur is a service and high-tech industry centre, but many people make use of its proximity to Zürich, which lies approximately to the south-west, and only 22 minutes by train.    What object entity has the relation of 'place of birth' with the subject 'stefan iten'?   Choices: - canton  - german  - germany  - liechtenstein  - of  - winterthur  - zürich
A:
zürich