"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-07 05:28:18.682201
"""

```python
from typing import List, Dict


class ReasoningEngine:
    """
    A simple reasoning engine that solves a limited set of problems based on logical rules.
    """

    def __init__(self):
        self.knowledge_base: Dict[str, List[Dict[str, str]]] = {}

    def add_rule(self, subject: str, rule: Dict[str, str]) -> None:
        """
        Adds a logical rule to the knowledge base.

        :param subject: The subject of the rule.
        :param rule: A dictionary containing key-value pairs representing the conditions and conclusion.
        """
        if subject not in self.knowledge_base:
            self.knowledge_base[subject] = []
        self.knowledge_base[subject].append(rule)

    def infer(self, subject: str) -> List[str]:
        """
        Infers conclusions from the knowledge base based on logical rules.

        :param subject: The subject to infer conclusions for.
        :return: A list of inferred conclusions.
        """
        if subject not in self.knowledge_base:
            return []

        # Example inference logic
        inferred_conclusions = []
        for rule in self.knowledge_base[subject]:
            conditions_met = all(condition in rule and rule[condition] == value
                                 for condition, value in rule.items() if condition != "conclusion")
            if conditions_met:
                inferred_conclusions.append(rule["conclusion"])

        return inferred_conclusions


# Example usage

reasoning_engine = ReasoningEngine()
reasoning_engine.add_rule("student", {"age": "18+", "grade": "A", "conclusion": "eligible"})
reasoning_engine.add_rule("student", {"age": "25+", "conclusion": "over_age"})

print(reasoning_engine.infer("student"))
```