make gina regex case-insensitive

[Shodo]

So I have a basic root timer along the lines of:
Search:
"{s} feet adhered to the ground"
Timer name:
"{s} Fettered"

Using the simple {s} matching works great for restarting it only on same mob, notifying of timer running out etc. However, I run into issues when I try to get it to end early.
Specifically, I tried to add an end-early check with:
"You have slain {s}"

But this doesn't work since the root landed notification capitalizes the first letter of the mob's name, while the slain message does not. (ex: "Greater plaguebone versus greater plaguebone"). Is there an easy way to convert whatever string {s} picks up to be all lower case?