Mobile Cranes

Ok, you need to pay attention here. The crane in the background is crane three, the crane in the foreground is crane one, crane two is out of shot, and is irrelevant anyway. So crane three was erected quite quickly yesterday, crane one was at that time in position out of shot. After the erection of crane three it was decided that crane one had to be moved (for whatever reason) to its location indicated here. Now it seems that another crane (crane four) is going to be erected in the original position of crane one. I did warn you to pay attention...