"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-08 04:05:22.127949
"""

```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] = []

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

    def deduce(self, premises: List[str], conclusion: str) -> bool:
        """
        Attempt to deduce a conclusion given some premises.

        :param premises: A list of known facts.
        :param conclusion: The fact we want to deduce.
        :return: True if the conclusion can be deduced from the premises, otherwise False.
        """
        for premise in premises:
            if premise not in self.knowledge or conclusion in self.knowledge[premise]:
                continue
            else:
                return False
        return True


def create_reasoning_engine() -> KnowledgeBase:
    """
    Create a basic reasoning engine to deduce facts from known premises.

    :return: A new instance of the KnowledgeBase class.
    """
    reasoning_engine = KnowledgeBase()
    # Adding some initial facts for demonstration
    reasoning_engine.add_fact("all_mammals_are_animals")
    reasoning_engine.add_fact("dog_is_a_mammal")
    return reasoning_engine


# Example usage:
if __name__ == "__main__":
    engine = create_reasoning_engine()
    premises = ["all_mammals_are_animals", "dog_is_a_mammal"]
    conclusion = "dog_is_an_animal"
    print(engine.deduce(premises, conclusion))  # Should print: True
```