Detailed Instructions: 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.
Problem:Context: 1983 Bok, provisional designation 1975 LB, is an asteroid from the middle region of the asteroid belt, discovered by American astronomer Elizabeth Roemer at the U.S. Steward Observatory of the University of Arizona, Tucson, on 9 June 1975.
Question: When was 1983 Bok discovered or created?
Solution:
9 june 1975