class BasicAgent:
    def __init__(self):
        print("BasicAgent initialized.")
        # Predefined question-answer pairs (for testing purposes)
        self.knowledge_base = {
            "What is your name?": "I am a basic agent.",
            "What is the capital of France?": "The capital of France is Paris.",
            "What is the largest mammal?": "The largest mammal is the blue whale.",
            # Add more predefined Q&A pairs here
        }

    def __call__(self, question: str) -> str:
        print(f"Agent received question: {question[:50]}...")

        # Attempt to get the answer from the predefined knowledge base
        answer = self.knowledge_base.get(question.strip(), None)

        if answer:
            print(f"Agent returning predefined answer: {answer}")
            return answer
        else:
            # Fallback: Generate a generic response if the question is not in the knowledge base
            fallback_answer = "Sorry, I don't know the answer to that question."
            print(f"Agent returning fallback answer: {fallback_answer}")
            return fallback_answer