"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-08 08:59:00.186807
"""

```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] = True

    def query(self, fact: str) -> bool:
        """Query whether a given fact is present in the knowledge base."""
        return fact in self.knowledge


class ReasoningEngine:
    """A simple reasoning engine to solve problems with limited sophistication."""

    def __init__(self, kb: KnowledgeBase):
        self.kb = kb

    def infer(self, facts: List[str], rules: Dict[str, str]) -> bool:
        """
        Infer new facts using the provided knowledge base and inference rules.
        
        :param facts: A list of known facts.
        :param rules: A dictionary where keys are patterns to match existing facts
                      and values are the inferred facts if the pattern matches.
        :return: True if a new fact can be inferred, otherwise False.
        """
        for rule in rules:
            for fact_to_check in facts:
                if rule in fact_to_check and self.kb.query(fact_to_check):
                    inferred_fact = rules[rule]
                    if not self.kb.query(inferred_fact):
                        print(f"Infer: {fact_to_check} -> {inferred_fact}")
                        return True
        return False

    def solve(self, problem: str) -> bool:
        """
        Solve a problem by inferring new facts.

        :param problem: A string describing the problem.
        :return: True if the problem can be solved, otherwise False.
        """
        self.kb.add_fact(problem)
        # Example rules
        rules = {
            "A and B": "C",
            "B and C": "D"
        }
        return self.infer([problem], rules)


# Example usage:
kb = KnowledgeBase()
reasoning_engine = ReasoningEngine(kb)

# Adding initial facts
kb.add_fact("It is raining")
kb.add_fact("I have an umbrella")

# Solving a problem using the reasoning engine
if reasoning_engine.solve("Should I carry my umbrella?"):
    print("The problem was solved.")
else:
    print("No solution found.")
```

This Python code creates a simple reasoning engine capable of inferring new facts based on existing ones and given rules. The example usage demonstrates how to add initial facts, define inference rules, and solve a problem using the reasoning engine.