"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-08 11:48:33.491906
"""

```python
from typing import List, Dict

class KnowledgeBase:
    def __init__(self):
        self.knowledge = {}

    def add_fact(self, fact: str) -> None:
        """Add a new fact to the knowledge base."""
        if fact not in self.knowledge:
            self.knowledge[fact] = True

    def query(self, statement: str) -> bool:
        """Query the knowledge base for a given statement."""
        return statement in self.knowledge


class ReasoningEngine:
    def __init__(self):
        self_kb = KnowledgeBase()

    def add_fact_to_engine(self, fact: str) -> None:
        """
        Add a new fact to the reasoning engine's knowledge base.
        
        :param fact: A string representing a new fact to be added
        """
        self_kb.add_fact(fact)

    def reason_about_statement(self, statement: str) -> bool:
        """
        Use the knowledge in the engine to determine if a given statement is true.

        :param statement: The statement to reason about.
        :return: True if the statement can be deduced from the knowledge base, False otherwise
        """
        return self_kb.query(statement)

    def example_usage(self):
        # Adding some initial facts
        self.add_fact_to_engine("All humans are mortal")
        self.add_fact_to_engine("Socrates is a human")

        # Reasoning about statements based on the added facts
        print(self.reason_about_statement("Socrates is mortal"))  # Should return True
        print(self.reason_about_statement("Plato is mortal"))     # Should return False, not in the knowledge base


# Example usage of the reasoning engine
reason_engine = ReasoningEngine()
reason_engine.example_usage()
```