Teacher:Generate a correct and concise answer for the question based on the words in the context.
Teacher: Now, understand the problem? Solve this instance: 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.
Question : What year is Oakley-class lifeboat associated with?
Student:
1958