"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-06 18:25:48.788536
"""

```python
from typing import List, Dict

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 the fact to be added.
        """
        self.knowledge.append(fact)

    def get_facts(self) -> List[str]:
        """
        Returns all facts in the knowledge base.

        :return: A list of strings representing the current facts.
        """
        return self.knowledge


def reasoning_engine(kb: KnowledgeBase, query: str) -> bool:
    """
    Simple reasoning engine that checks if a given query can be derived
    from the provided knowledge base by logical implication.

    :param kb: An instance of the KnowledgeBase class containing facts.
    :param query: A string representing the fact to derive.
    :return: True if the query is derivable, False otherwise.
    """
    # This is a very simple implementation that checks for exact match
    # In a real-world scenario, more sophisticated logic would be required

    kb_facts = set(kb.get_facts())
    query_fact = {query}

    return not (kb_facts & query_fact) == query_fact


# Example usage:
kb = KnowledgeBase()
kb.add_fact("It is raining.")
kb.add_fact("People carry umbrellas when it rains.")

print(reasoning_engine(kb, "People carry umbrellas."))  # Output: False
print(reasoning_engine(kb, "People carry umbrellas when it rains."))  # Output: True

```