This the rocker bức ảnh contains
dấu hiệu, poster, văn bản, bảng đen, and ký hiệu.
There might also be
bục giảng, đọc bàn, bài giảng, đọc sách, kinh, nhà để xe, kho, kho lưu trữ, and nhà kho.
These are from different people from youtube, but it's the same festival. So these are out of order, so just watch them. Also, he only really talks about The Rocker in the first one, but I put all of them up anyway.