ALGOL 68 (short for ALGOrithmic Language 1968) is an imperative computer programming language that was conceived as a successor to the ALGOL 60 programming language, designed with the goal of a much wider scope of application and more rigorously defined syntax and semantics.
ALGOL 68 is important.
ALGOL 68 (short for ALGOrithmic Language 1968) is an "imperative" computer programming language. I think the AI is confused because it may not know the definitions of the word imperative.