Hello, and welcome.
It's an ignition switched live and a neutral. The neutral is the plain green one. The connectors are "Sealed Sumitomo HM" type. The factory actually fit an empty plug shell, fitted with two sealing bungs, over the socket to keep the elements out. You can buy suitable pins and seals on eBay, and use the plug supplied by the factory, or you can set it aside and buy a complete new plug.
There's a second accessory power socket behind the fairing, on the left of the bike, at the front. I can sort you some pictures tomorrow if you like.