"""Create fact_checker
Generated by Phi-Octopus Eden
2025-11-08 14:51:01.214224
"""

```python
from typing import List, Dict, Any
from functools import lru_cache

class FactChecker:
    """
    A class for checking facts based on given data.
    Uses caching to store results and avoid redundant checks.

    Args:
        knowledge_base: A dictionary of facts where keys are queries and values are answers.
                        Example: {"2+2": "4", "year of World War II": "1939-1945"}

    Methods:
        check_fact: Checks if a given fact is correct based on the knowledge base.
        get_answer: Retrieves an answer for a given query from the knowledge base.
        update_knowledge_base: Updates the internal knowledge base with new facts.
    """

    def __init__(self, knowledge_base: Dict[str, str]):
        self.knowledge_base = knowledge_base
        self.cache = {}

    @lru_cache(maxsize=128)
    def check_fact(self, query: str) -> bool:
        """
        Check if the given fact is correct based on the knowledge base.

        Args:
            query: The fact to be checked.

        Returns:
            A boolean indicating whether the fact is correct.
        """
        return self.get_answer(query) == query.strip().split()[0].replace("?", "").strip()

    def get_answer(self, query: str) -> str:
        """
        Retrieve an answer for a given query from the knowledge base.

        Args:
            query: The query to retrieve an answer for.

        Returns:
            A string containing the answer stored in the knowledge base.
        Raises:
            KeyError if the query is not found in the knowledge base.
        """
        return self.knowledge_base[query]

    def update_knowledge_base(self, new_facts: Dict[str, str]) -> None:
        """
        Update the internal knowledge base with new facts.

        Args:
            new_facts: A dictionary of new facts to be added to the knowledge base.
        """
        self.knowledge_base.update(new_facts)

# Example usage
if __name__ == "__main__":
    kb = {
        "2+2": "4",
        "year of World War II": "1939-1945",
        "Capital of France": "Paris"
    }
    
    fact_checker = FactChecker(kb)
    
    print(fact_checker.check_fact("What is 2 plus 2?"))  # True
    print(fact_checker.check_fact("Who was the capital of France in World War II?"))  # False
    
    new_facts = {
        "Einstein's birth year": "1879",
        "Age of Jupiter": "Over 4 billion years"
    }
    
    fact_checker.update_knowledge_base(new_facts)
    
    print(fact_checker.check_fact("When was Einstein born?"))  # True
```