system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout] Why aren't there any pens?

But they have a ton of pencils.
gpt
You know how when you put a pen down and then you can't find it two seconds later? That phenomenon was magnified a thousand fold by radiation from the wars. Nobody knows for sure if the pens themselves disappear or if they're merely residing in a sate outside of human comprehension. 

Some folk say there's a hidden vault full of missing pens. But that's just crazy talk.