"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-06 02:06:51.488744
"""

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

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

    def add_fact(self, fact: str) -> None:
        """Add a new fact to the knowledge base."""
        if isinstance(fact, str):
            self.knowledge[fact] = True
        else:
            raise ValueError("Fact must be a string")

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

def reasoning_engine(input_statements: List[str], kb: KnowledgeBase) -> Tuple[bool, str]:
    """
    A simple reasoning engine that evaluates logical statements based on given facts.
    
    Parameters:
    input_statements (List[str]): A list of logical statements to evaluate.
    kb (KnowledgeBase): An instance of the knowledge base containing all facts.

    Returns:
    Tuple[bool, str]: A tuple indicating if any statement is true and an explanation.
    """
    for fact in input_statements:
        if fact not in kb.get_all_facts().keys():
            return False, f"Fact '{fact}' does not exist in the knowledge base."
    
    # Example: Check if all given facts are true
    all_true = all(kb.get_all_facts()[fact] for fact in input_statements)
    explanation = "All statements are true according to the current knowledge base." if all_true else "Not all statements are true."

    return all_true, explanation

# Example usage:
if __name__ == "__main__":
    kb = KnowledgeBase()
    kb.add_fact("A")
    kb.add_fact("B")
    
    result, explanation = reasoning_engine(["A", "C"], kb)
    print(f"Result: {result}, Explanation: {explanation}")
```