Definition: Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
Input: Context: Helikopter Service Flight 165 was a crash of a Sikorsky S-61 helicopter into the North Sea, 78 nautical miles (144 km; 90 mi) northeast of Bergen, Norway, on 26 June 1978.
Question: What is the date when Helikopter Service Flight 165 happened?
Output:
26 june 1978