Question: What was the first year the NinjaTel van's model released?
Sentence (from "NinjaTel Van"): From July 26 to July 29, 2012 the Ninja Networks team created and operated a mobile cell phone network from a van placed in the Vendor area of DEF CON 20, at the Rio Hotel/Casino in Las Vegas, and the Ninja Party, at Rumor Boutique Hotel in Las Vegas.
Relevant evidence: No