"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-07 13:22:11.209681
"""

```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
            print(f"Fact added: {fact}")

    def query(self, question: str) -> bool:
        """Check if the given question can be answered based on existing facts."""
        return question in self.knowledge

class ReasoningEngine:
    def __init__(self):
        self.kb = KnowledgeBase()
        self.reasoning_steps = 0

    def add_fact(self, fact: str) -> None:
        """Add a new fact to the reasoning engine's knowledge base."""
        print("Adding fact...")
        self.kb.add_fact(fact)
        self.reasoning_steps += 1

    def deduce(self, question: str) -> bool:
        """
        Attempt to answer a question based on existing facts.
        
        Args:
            question (str): The question to be answered by the reasoning engine.
        
        Returns:
            bool: True if the question can be answered, False otherwise.
        """
        print("Deducing...")
        return self.kb.query(question)

def example_usage():
    """Example usage of the ReasoningEngine class."""
    print("Creating a Reasoning Engine instance...")
    reasoning_engine = ReasoningEngine()
    
    # Adding some facts
    reasoning_engine.add_fact("All humans are mortal.")
    reasoning_engine.add_fact("Socrates is a human.")
    
    # Attempt to answer questions
    print(f"Is Socrates mortal? {reasoning_engine.deduce('Socrates is mortal.')}")
    print(f"Is Plato mortal? {reasoning_engine.deduce('Plato is mortal.'")  # This should return False as we have no fact about Plato

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

This code implements a simple reasoning engine that can add facts to its knowledge base and attempt to answer questions based on those facts. The `example_usage` function demonstrates how to use the `ReasoningEngine` class.