input: Background: Nikola Tesla (Serbian Cyrillic: Никола Тесла; 10 July 1856 – 7 January 1943) was a Serbian American inventor, electrical engineer, mechanical engineer, physicist, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system.
  Question: In what year did Tesla die? 
  Answer:<extra_id_0>.
output: <extra_id_0> 1943<extra_id_1>