Yay...only because this is literally the only one of these I have gotten correct.

I find comfort in knowing others found this section to be difficult.

Subtle, subtle...this one got me!

I just keep reminding myself to not assume anything. Only use the information given. I am getting them correct, but I am a bit slow.

#feedback It would be helpful if you would add an example that is "not valid", so we can compare.