Tail Lights 97 Ranger

[Captain]

Good day, I have run into a small problem with my tail lights they have stopped working and while trying to pick though the problem, I can't seem to find the "Park Lamp Relay". I've looked though the normal resources and while they say it exists they don't say where on the truck, i was hoping someone had an idea here, thanks for your time. Capt.

97 ford ranger splash