"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-07 00:47:49.413637
"""

```python
from typing import List, Dict, Optional

class KnowledgeBase:
    def __init__(self):
        self.knowledge = []

    def add_fact(self, fact: str) -> None:
        """Add a new fact to the knowledge base."""
        self.knowledge.append(fact)

    def get_facts(self) -> List[str]:
        """Retrieve all facts from the knowledge base."""
        return self.knowledge

class RuleBase:
    def __init__(self):
        self.rules = []

    def add_rule(self, rule: str) -> None:
        """Add a new rule to the rule base."""
        self.rules.append(rule)

    def apply_rules(self, facts: List[str]) -> Optional[str]:
        """
        Apply rules from the rule base on given facts.
        
        Args:
            facts (List[str]): The list of known facts.

        Returns:
            Optional[str]: The result or conclusion if applicable, otherwise None.
        """
        for fact in facts:
            for rule in self.rules:
                if rule.startswith(fact):
                    return f"Conclusion: {rule.split(' ')[1]}"
        return None

def create_reasoning_engine(knowledge_base: KnowledgeBase, rule_base: RuleBase) -> Optional[str]:
    """
    Create a reasoning engine that utilizes both the knowledge base and rule base.

    Args:
        knowledge_base (KnowledgeBase): The instance of the knowledge base.
        rule_base (RuleBase): The instance of the rule base.

    Returns:
        Optional[str]: The result or conclusion from applying rules to facts, otherwise None.
    """
    facts = knowledge_base.get_facts()
    if not facts:
        return None
    result = rule_base.apply_rules(facts)
    return result

# Example usage
if __name__ == "__main__":
    kb = KnowledgeBase()
    rb = RuleBase()

    # Adding some facts and rules to the knowledge base and rule base.
    kb.add_fact("All birds can fly")
    kb.add_fact("Penguins are birds")

    rb.add_rule("Penguins can't fly")

    reasoning_result = create_reasoning_engine(kb, rb)
    print(reasoning_result)  # Output: Conclusion: Penguins can't fly
```