Sure! Here's how you can categorize each of these items:
Reliable:
- a website with an address ending in gov
- an official university website
Unreliable:
- a website with an address ending in com
- an open-source website (this can vary, but often lacks the level of credibility found in more established sources)
Keep in mind that the reliability can vary based on the specific website, its content, and its authorship.