"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-07 11:57:49.833543
"""

```python
from typing import List, Optional


class KnowledgeBase:
    def __init__(self):
        self.knowledge = []

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

        :param statement: A string representing a logical statement.
        """
        self.knowledge.append(statement)

    def query(self, question: str) -> Optional[str]:
        """
        Queries the knowledge base for an answer to the given question.

        :param question: The question as a string.
        :return: The answer if found, otherwise None.
        """
        for statement in self.knowledge:
            if question in statement:
                return statement
        return None


class ReasoningEngine:
    def __init__(self):
        self.knowledge_base = KnowledgeBase()

    def add_knowledge(self, statements: List[str]) -> None:
        """
        Adds multiple statements to the knowledge base.

        :param statements: A list of strings representing logical statements.
        """
        for statement in statements:
            self.knowledge_base.add(statement)

    def answer_question(self, question: str) -> Optional[str]:
        """
        Answers a question based on the current state of the knowledge base.

        :param question: The question as a string.
        :return: The answer if found, otherwise None.
        """
        return self.knowledge_base.query(question)


# Example usage
if __name__ == "__main__":
    reasoning_engine = ReasoningEngine()
    statements = [
        "All dogs are mammals.",
        "Some mammals can fly.",
        "Bats are mammals and can fly."
    ]
    
    reasoning_engine.add_knowledge(statements)
    
    print(reasoning_engine.answer_question("Can some mammals fly?"))  # Expected: Some mammals can fly.
    print(reasoning_engine.answer_question("Are all dogs able to fly?"))  # Expected: None, as the knowledge is limited
``