```python
import google.generativeai as genai

class BasicAgent:
    def __init__(self):

        api_key = os.getenv("AIzaSyANWl4RBntGQDkPU4ll_3hWd8GmjWtOGt0")

        genai.configure(api_key=api_key)

        self.model = genai.GenerativeModel(
            "gemini-1.5-flash"
        )

        print("Gemini Agent initialized.")

    def __call__(self, question: str) -> str:

        print(f"Question: {question[:100]}")

        prompt = f"""
You are a GAIA benchmark assistant.

Answer the question carefully.

IMPORTANT:
- Return ONLY the final answer.
- No explanation.
- No extra text.
- No formatting.
- Exact answer only.

Question:
{question}
"""

        response = self.model.generate_content(prompt)

        answer = response.text.strip()

        print(f"Answer: {answer}")

        return answer
```