Prolog is a programming language based on logic that is closely linked to the fields of artificial intelligence and computational linguistics. Originating from first-order logic, which is a type of formal logic, Prolog distinguishes itself from many other programming languages by being primarily a declarative language, where logic is conveyed through relations that are defined by facts and rules. To begin a computation, one must execute a query against these established relations. As one of the pioneering logic programming languages, Prolog continues to enjoy widespread popularity today, supported by various free and commercial implementations. This versatile language has found applications in diverse areas such as theorem proving, expert systems, term rewriting, type systems, automated planning, and its foundational purpose of natural language processing. Additionally, contemporary Prolog environments offer capabilities for developing graphical user interfaces, alongside support for both administrative tasks and networked applications, further demonstrating its adaptability in modern programming contexts.