"""Create fact_checker
Generated by Phi-Octopus Eden
2025-11-06 02:42:16.031765
"""

```python
from typing import List, Dict


class FactChecker:
    """
    A simple fact checker class that can verify statements based on provided evidence.
    """

    def __init__(self):
        self.evidence_store: Dict[str, bool] = {}

    def add_evidence(self, statement: str, is_true: bool) -> None:
        """
        Adds a piece of evidence to the store.

        :param statement: The statement to be added as evidence.
        :param is_true: Whether the statement is true or false.
        """
        self.evidence_store[statement] = is_true

    def check_statement(self, statement: str) -> bool:
        """
        Checks if a given statement is supported by the existing evidence.

        :param statement: The statement to be checked.
        :return: True if the statement is true according to the evidence, False otherwise.
        """
        return self.evidence_store.get(statement, False)

    def update_evidence(self, new_statements: Dict[str, bool]) -> None:
        """
        Updates the evidence store with new statements.

        :param new_statements: A dictionary of new statements and their truth values.
        """
        self.evidence_store.update(new_statements)


def example_usage():
    fact_checker = FactChecker()
    # Adding some initial evidence
    fact_checker.add_evidence("The sky is blue", True)
    fact_checker.add_evidence("Grass is green", True)

    # Checking statements
    print(fact_checker.check_statement("The sky is blue"))  # Output: True
    print(fact_checker.check_statement("Trees are red"))   # Output: False

    # Updating evidence and checking again
    new_statements = {
        "Grass is green": False, 
        "Sunsets can be orange": True
    }
    fact_checker.update_evidence(new_statements)
    print(fact_checker.check_statement("Sunsets can be orange"))  # Output: True


if __name__ == "__main__":
    example_usage()
```