You are in front of a soda machine.
Turns out, you can insert ANYTHING into the machine and get ANYTHING back!
Your post starts with "Gets ......" based on the previous poster's Insert and concludes with a new "Inserts ......"
I'll start here and then follow on to give you the idea. Let's say previous person ended their post with "Inserts: cold rainy day". So the next post would look something like this...
Inserts: cold rainy day
Gets: warm sunny day
Inserts: really bad drivers