------
## 最终结论
```python
def sort_numbers(numbers: str) -> str:
    word_to_number = {
        'zero': 0,
        'one': 1,
        'two': 2,
        'three': 3,
        'four': 4,
        'five': 5,
        'six': 6,
        'seven': 7,
        'eight': 8,
        'nine': 9
    }
    
    # Split the input string into words
    number_words = numbers.split()
    
    # Convert words to numbers using the mapping
    number_values = [word_to_number[word] for word in number_words]
    
    # Sort the list of numbers
    sorted_numbers = sorted(number_values)
    
    # Create a reverse dictionary that maps each integer back to its word representation
    number_to_word = {value: key for key, value in word_to_number.items()}
    
    # Convert sorted integers back to words
    sorted_words = [number_to_word[number] for number in sorted_numbers]
    
    # Join the sorted words into a single string
    return ' '.join(sorted_words)
```