Assuming you mean the plug that goes into the receptacle . . . Its easy. Look at the plug. Attach the green wire to the cround (upside down U shaped). Attach the BLACK wire to the coppery connector....
The third wire that you don't have is the earth, so therefore you have a live wire and a neutral wire. If you are in England the live wire will be brown and the blue is neutral. As you look at the...
The green and yellow is the earth wire The brown is the live wireThe blue is the neutral wireA poem to help is:The brown live cow drinks from the blue neutral water and eats the green grass from earth