"""Create fact_checker
Generated by Phi-Octopus Eden
2025-11-06 04:06:11.389883
"""

```python
from typing import List, Dict

class FactChecker:
    """
    A simple fact-checking system that evaluates claims against a predefined set of facts.
    
    Methods:
        check_facts(claims: List[str], facts: Dict[str, bool]) -> Dict[str, bool]:
            Returns a dictionary indicating whether each claim is true or false based on the provided facts.
    """
    def check_facts(self, claims: List[str], facts: Dict[str, bool]) -> Dict[str, bool]:
        """
        Check the truthfulness of given claims.

        Args:
            claims (List[str]): A list of claims to evaluate.
            facts (Dict[str, bool]): A dictionary mapping fact names to their boolean values (True/False).

        Returns:
            Dict[str, bool]: A dictionary where keys are claim labels and values indicate whether the claim is true or false.
        
        Example usage:
            >>> checker = FactChecker()
            >>> claims = ['The sky is blue', '2+2=4', 'AI can predict stock market']
            >>> facts = {'sky_is_blue': True, '2_plus_2_equals_4': True}
            >>> checker.check_facts(claims, facts)
            {
                'The sky is blue': True,
                '2+2=4': True,
                'AI can predict stock market': False
            }
        """
        results = {}
        for claim in claims:
            # Simplified logic: match the claim to a fact key
            claim_key = self._claim_to_fact_key(claim)
            if claim_key in facts:
                results[claim] = facts[claim_key]
            else:
                results[claim] = False  # Assume unknown claims are false by default
        return results

    def _claim_to_fact_key(self, claim: str) -> str:
        """
        Convert a natural language claim to a fact key.

        Args:
            claim (str): The natural language claim to convert.
        
        Returns:
            str: A string representing the fact key.
        """
        # Simplified conversion logic
        words = claim.lower().replace(' ', '_').replace(',', '').replace('.', '')
        return f'{words}_is_true'


# Example usage
if __name__ == "__main__":
    checker = FactChecker()
    claims = ['The sky is blue', '2+2=4', 'AI can predict stock market']
    facts = {'sky_is_blue': True, '2_plus_2_equals_4': True}
    print(checker.check_facts(claims, facts))
```

This code snippet defines a `FactChecker` class that implements a simple fact-checking system. It includes a method to evaluate claims against provided facts and returns the results in a dictionary. The example usage demonstrates how to instantiate the class, define some claims and associated facts, and use the `check_facts` method.