act of 1999.- it not by the greater london authority act of 1999. the act creates _ authority act of 1999. that's right. and the act creates and _ authority act of 1999. that's right. and the act creates and then describes the powers of this institution called the greater london authority, which itself is formed of the mayor and the assembly, is that a fair summary? it is, yeah. assembly, is that a fair summary? it is, yeah- mayor— assembly, is that a fair summary? it is, yeah. mayor has, _ assembly, is that a fair summary? it is, yeah. mayor has, as _ assembly, is that a fair summary? it is, yeah. mayor has, as we - assembly, is that a fair summary? it is, yeah. mayor has, as we will - assembly, is that a fair summary? it is, yeah. mayor has, as we will see. is, yeah. mayor has, as we will see in a moment. _ is, yeah. mayor has, as we will see in a moment, some _ is, yeah. mayor has, as we will see in a moment, some strategic - is, yeah. mayor has, as we will see i in a moment, some strategic powers, as well as other duties, and the principal role