AllMotorNoPower

So I decided to pull out my wiring harness from my hatch and clean it up a bit and its a mess.Unforantley, I did not label the plugs as I unplugged them. I came across these two plugs and the wires are all weird. I believe one is the coolant temp plug and the other is the O2 sensor. The one that is disconnected is the O2 but there was an extension wire connected to a wire or wires from the harness but it disconnected when I pulled it out, Now I am confused on which wire goes where. As you can see from the pictures, the previous owner added some extra wires and made it all messy. There are two wires that are free. One being a yellow one and the other being a dirty white one, I can't really tell the color. Can someone please help me figure out which wire or wires got to the end of the plug. I am still a noob and I am still learning as I go so I don't know much and I couldn't find anything on the interweb. I honestly don't even know if I am posting in the right place on this website. Thanks to anyone that can help me out. Which wire, or do both wires, connect to the end of the disconnected plug?
These are the two plugs that were next to each other and the wires are a mess.

atmdc

no Idea what setup or engine you have but this could point you in the right direction