"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-07 01:52:07.889131
"""

```python
from typing import List, Dict


class ReasoningEngine:
    """
    A simple reasoning engine that can evaluate expressions based on given conditions.
    """

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

    def add_knowledge(self, condition: str, value: bool) -> None:
        """
        Adds or updates a piece of knowledge in the form of (condition, value).

        :param condition: The condition to be evaluated.
        :param value: The boolean value associated with the condition.
        """
        self.knowledge_base[condition] = value

    def evaluate(self, expression: str) -> bool:
        """
        Evaluates an expression based on the current knowledge base.

        :param expression: A logical expression using conditions from the knowledge base.
        :return: The result of evaluating the expression (True or False).
        """
        try:
            return eval(expression, self.knowledge_base)
        except NameError as e:
            raise ValueError(f"Invalid condition in expression: {e}")


def example_usage():
    reasoning_engine = ReasoningEngine()
    
    # Adding some knowledge
    reasoning_engine.add_knowledge("x > 5", True)
    reasoning_engine.add_knowledge("y < 10", False)
    
    # Evaluating an expression based on the added knowledge
    result = reasoning_engine.evaluate("(x > 5) and (y < 10)")
    print(f"Result of evaluating 'x > 5' and 'y < 10': {result}")
    
    # Adding more knowledge
    reasoning_engine.add_knowledge("z == 7", True)
    
    # Evaluating a new expression with the updated knowledge base
    result = reasoning_engine.evaluate("(x > 5) or (z == 7)")
    print(f"Result of evaluating 'x > 5' or 'z == 7': {result}")


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