- 20WS.BM1 (grade 3, basement, 1 photo)20WS.BM2 (grade 1, basement, 1 photo)20WS.3 (grade 4, ground floor, 1 photo)20WS.4 (grade 3, ground floor, 1 photo)20WS.5 (grade 6, 1st floor, 1 photo)20WS.6 (grade 3, 1st floor, 1 photo, 1 comment)20WS.7 (grade 3, 2nd floor, 1 photo, 1 comment)20WS.8 (grade 3, 2nd floor, 1 photo)