Just tried perplexity.ai for the first time. Everyone's been raving about it. I asked it a question I asked ChatGPT in working on the RSS feeds for my current project. "Suppose I had an RSS feed for a WordPress blog, and I wanted to include the id's of the site and post in the <item> for each post. Is there a standard way to do this? If not, is there a namespace defined for WordPress blogs that might provide some prior art?" Both were able to get me all the info I wanted, and answered follow-up questions. Perplexity got there sooner. Here's the transcript.