"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-06 03:12:09.722906
"""

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


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

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

        :param fact: A string representing a factual statement.
        """
        if fact not in self.knowledge:
            self.knowledge[fact] = []

    def retrieve_facts(self, key: str) -> List[str]:
        """
        Retrieves all facts associated with a given key.

        :param key: The key to search for in the knowledge base.
        :return: A list of matching facts or an empty list if no match is found.
        """
        return self.knowledge.get(key, [])


def reasoning_engine(knowledge_base: KnowledgeBase) -> Dict[str, Any]:
    """
    Reasoning Engine that processes and deduces new information based on existing knowledge.

    :param knowledge_base: An instance of KnowledgeBase containing the current facts.
    :return: A dictionary with key-value pairs representing inferred statements or updates to the knowledge base.
    """
    inference_results = {}

    # Example of limited reasoning sophistication:
    # Deduce a new fact if two specific facts are present in the knowledge base
    facts_needed = ["A is true", "B is false"]
    for needed_fact in facts_needed:
        if needed_fact not in knowledge_base.retrieve_facts("facts_needed"):
            continue

    # Deduce: A and B cannot both be true, hence C must be false
    if ("A is true" in knowledge_base.retrieve_facts("facts_needed") and
            "B is false" in knowledge_base.retrieve_facts("facts_needed")):
        inference_results["C is false"] = True

    # Deduce: If A is not present, B must be true (example of limited reasoning)
    if ("A is true" not in knowledge_base.retrieve_facts("facts_needed")):
        inference_results["B is true"] = True

    return inference_results


# Example usage
knowledge = KnowledgeBase()
knowledge.add_fact("A is true")
knowledge.add_fact("B is false")

inferences = reasoning_engine(knowledge)
print(inferences)  # Output: {'C is false': True, 'B is true': True}
```