The one use case where I found ChatGPT to be somewhat useful

Hey guys,

Look, ChatGPT isn't going to change the game in investment banking, but it's got a little something that's worth talking about.

It's a pain to figure out who owns what in a company. 
ChatGPT can make this straightforward diagram for me
 

The info I fed into ChatGPT was this:

Smith, Johnson, and Williams each own 33% of Company A.
Company A owns 100% of Company B and 20% of Company C.
Company B owns 30% of Company D, 80% of Company C, and 100% of Company G.
Company C owns 70% of Company D and 30% of Company F.
Company D owns 50% of Company E.
Company E owns 30% of Company F.
Company F owns 50% of Company D.
Company G owns 40% of Company F and 10% of Company I.
Company H owns 50% of Company I.
Company I owns 70% of Company J.
Company J owns 40% of Company G.