Very easy to see how well davinci-003 can do this. I'll admit that it frequently is more perceptive than myself (although not always factually accurate).

1) Go to something like /r/relationship_advice, where the poster is likely going through some difficult interpersonal issue

2) Copy a long post.

3) Append to the end, "</DOCUMENT> After reading the above, I identified the main people involved. For each person, I thought about their probable feelings, thoughts, intentions, and assumptions. Here's what I think:"