"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-07 09:08:19.536017
"""

```python
from typing import List, Tuple


class ReasoningEngine:
    """
    A basic reasoning engine to handle limited reasoning tasks.
    This class can evaluate simple logical expressions based on given conditions.

    Args:
        knowledge_base: A dictionary where keys are variable names and values are their states (True/False).

    Methods:
        evaluate_expression: Evaluates a logical expression based on the provided knowledge base.
    """

    def __init__(self, knowledge_base: dict):
        self.knowledge_base = knowledge_base

    def evaluate_expression(self, expr: str) -> bool:
        """
        Evaluate the given logical expression based on current knowledge.

        Args:
            expr (str): A string representing a logical expression. Example: "A and not B or C".

        Returns:
            bool: The result of the evaluation.
        """
        # Replace variable names with their states from the knowledge base
        for var, state in self.knowledge_base.items():
            expr = expr.replace(var, 'True' if state else 'False')

        # Evaluate the expression using Python's eval function
        try:
            return eval(expr)
        except NameError as e:
            print(f"Invalid variable found: {e}")
            return False


def example_usage():
    """
    Example usage of the ReasoningEngine class.
    Demonstrates how to create a knowledge base and use it to evaluate logical expressions.
    """
    # Initialize a simple knowledge base
    knowledge_base = {"A": True, "B": False, "C": True}

    # Create an instance of ReasoningEngine with the provided knowledge base
    reasoning_engine = ReasoningEngine(knowledge_base)

    # Example logical expressions to evaluate
    expressions = [
        "A and B",  # Should return False
        "not A or C",  # Should return True
        "A and not C"  # Should return False
    ]

    for expr in expressions:
        result = reasoning_engine.evaluate_expression(expr)
        print(f"Evaluating: {expr} -> Result: {result}")


# Run the example usage function to see how it works
example_usage()
```