"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-06 21:07:30.128966
"""

```python
from typing import List, Dict


class ReasoningEngine:
    """
    A simple reasoning engine designed to solve problems with limited reasoning sophistication.
    This engine will take a set of rules and facts as input and use them to draw conclusions based on those inputs.
    """

    def __init__(self, rules: Dict[str, str], facts: List[str]):
        self.rules = rules
        self.facts = set(facts)

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

        :param fact: The new fact to be added.
        """
        self.facts.add(fact)

    def infer_new_facts(self) -> List[str]:
        """
        Applies all rules against the current set of facts and infers any new facts that can be concluded.

        :return: A list of new facts inferred by the engine.
        """
        inferred_facts = []
        for rule, conclusion in self.rules.items():
            if all(fact in self.facts for fact in rule.split()):
                if conclusion not in self.facts:
                    self.facts.add(conclusion)
                    inferred_facts.append(conclusion)

        return inferred_facts

    def get_current_knowledge(self) -> List[str]:
        """
        Returns the current set of known facts.

        :return: A list of all currently known facts.
        """
        return list(self.facts)


# Example usage
if __name__ == "__main__":
    rules = {
        "A and B": "C",
        "B and C": "D"
    }
    
    initial_facts = ["A", "B"]
    
    engine = ReasoningEngine(rules, initial_facts)
    print("Initial facts:", engine.get_current_knowledge())
    
    new_inferences = engine.infer_new_facts()
    print("New inferred facts:", new_inferences)
    
    print("Updated knowledge after inference:", engine.get_current_knowledge())

    # Adding a new fact
    engine.add_fact("C")
    new_inferences_after_addition = engine.infer_new_facts()
    print("Additional inferences after adding 'C':", new_inferences_after_addition)
    print("Final knowledge state:", engine.get_current_knowledge())
```