question: Når var sist gang det var en tornado i lincoln i nebraska?
context: Tornado outbreak of November 17, 2013
  Lincoln, Illinois Værmeldingskontor (17. november 2013). "Tornadoadvarsel for fylkene sørlige Grundy, East Central La Salle og North Central Livingston Counties kl. 11:33 CST 17. november 2013". Lincoln, Illinois: Iowa Environmental Mesonet. Hentet 10. mars 2014.
context_en: Tornado outbreak of November 17, 2013
  Lincoln, Illinois Weather Forecast Office (November 17, 2013). "Tornado Warning for Southern Grundy, East Central La Salle, and North Central Livingston Counties at 11:33 AM CST on November 17, 2013". Lincoln, Illinois: Iowa Environmental Mesonet. Retrieved 10 March 2014.
title_en: Tornado outbreak of November 17, 2013