Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Q: Context : The Oakley-class lifeboat refers to two types of self-righting lifeboat operated by the Royal National Lifeboat Institution around the coast of the United Kingdom and Ireland between 1958 and 1993.
Answer : 1958
A:
What year is Oakley-class lifeboat associated with?