------
## 最终结论
```python
import re

def find_long_word(string):
    return re.findall(r'\b\w{5}\b', string)

# Test cases
assert find_long_word('Please move back to strem') == ['strem']
assert find_long_word('4K Ultra HD streaming player') == ['Ultra']
assert find_long_word('Streaming Media Player') == ['Media']
```