An indoor photograph captures a classroom scene within an educational institution in Sofia, Bulgaria

An indoor photograph captures a classroom scene within an educational institution in Sofia, Bulgaria. In the immediate foreground, an open, light blue Red Bull "ICE EDITION" energy drink can rests on a light-colored wooden desk. To the left, a male with short, dark hair and eyeglasses is seated at an adjacent wooden desk, wearing a black puffer jacket. He holds a light blue cylindrical object (possibly a thermos or can) in his left hand, and his mouth is slightly open, directing his gaze downward and to the right. A smartphone with an illuminated screen lies flat on his desk. Partially visible behind him, a second male in a dark jacket is also seated at a desk. The classroom features a two-tone wall design: the lower section is painted light green, while the upper section and ceiling are off-white, exhibiting visible cracking and peeling paint. Posters and charts, including one with numerical grids and another with an image of a car, are affixed to the upper wall. A dark brown door with a silver handle is visible in the background, above which a black security camera (CCTV) is mounted. A whiteboard is partially visible on the far left wall. Natural light illuminates the scene from the left.