As the procession came around a bend, entering the home stretch for the Binnenhof, he spied a row of protesters—or at least he assumed they were protesting something—who had staked out a few meters of space on the uppermost tier of a bleacher and deployed a banner made from a couple of bedsheets joined together. It read, simply, ZGL. Next to that was a crude cartoon—some sort of animal. Primitive heraldry.