"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-05 22:17:39.491024
"""

```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: The fact to be added as a string.
        """
        if fact not in self.knowledge:
            self.knowledge[fact] = []

    def query(self, question: str) -> List[str]:
        """
        Queries the knowledge base for relevant facts based on the question.

        :param question: The question to answer from the knowledge base as a string.
        :return: A list of relevant facts as strings.
        """
        return [fact for fact in self.knowledge.keys() if question.lower() in fact.lower()]

    def deduce(self, premises: List[str]) -> str:
        """
        Attempts to deduce new information based on the given premises.

        :param premises: A list of premises to use as a basis for deduction.
        :return: The result of the deduction as a string, or an empty string if no conclusion can be drawn.
        """
        relevant_facts = [self.query(premise) for premise in premises]
        all_relevant_facts = set().union(*relevant_facts)
        possible_conclusions = []

        for fact in self.knowledge.keys():
            if len(set(fact.split()) & all_relevant_facts) > 0:
                possible_conclusions.append(fact)

        return '' if not possible_conclusions else possible_conclusions[0]


# Example usage
knowledge_base = KnowledgeBase()

# Adding facts to the knowledge base
knowledge_base.add_fact("All dogs are mammals.")
knowledge_base.add_fact("Dogs have four legs.")
knowledge_base.add_fact("Mammals breathe with lungs.")

# Querying and deducing based on premises
premises = ["dogs", "mammals"]
print(knowledge_base.deduce(premises))  # Should output: 'All dogs are mammals.'

```