Context: Production industry constitutes a small part of the economy of Utrecht. The economy of Utrecht depends for a large part on the several large institutions located in the city. It is the centre of the Dutch railroad network and the location of the head office of Nederlandse Spoorwegen. ProRail is headquartered in The De Inktpot (nl) (The Inkpot) – the largest brick building in the Netherlands (the "UFO" featured on its façade stems from an art program in 2000). Rabobank, a large bank, has its headquarters in Utrecht.

Question: What does Utrecht's economy  depend on 
Answer: The economy of Utrecht depends for a large part on the several large institutions located in the city

Question: what is centered in Utrecht 
Answer: It is the centre of the Dutch railroad network and the location of the head office of Nederlandse Spoorwegen

Question: What bank is head quartered in Utrecht 
Answer: Rabobank, a large bank, has its headquarters in Utrecht.

Question: For what city is the production industry a large part of the economy?
Answer: Unanswerable

Question: Where is the center of the EU railway located?
Answer: Unanswerable

Question: What is the largest brick building in Europe?
Answer: Unanswerable

Question: What resulted in a UFO on the side of The De Inktpot in the 20th century?
Answer: Unanswerable