Defining "Underground"

Many thanks Susan! My question was Case #1 OR Case #2, since both are listed in SSc7.2. If my Case #1 is correct (my parking would be considered underground), then can you please give me an example whereby there exists a roof used to shade / cover a parking?

Thanks Susan.. I'm going to rephrase my question just to make sure we're understanding each other: The school has 2 buildings: "North Block" and "South Block" A person on the street can enter the school via the North side of the North Block. While walking towards the South direction (and the South building too), he/she will pass by 2 car parking spots, which are on the Ground Floor Level, but fully under the North Building (Classrooms begin at the First Floor). In terms of SSc7.1, we are fine for these 2 parking spots, since they classify under "Parking under a building". This person continues to move South, and finds himself/herself in a car parking (~15 cars) with a ceiling above. This ceiling is nothing but the floor of a playground used for elementary students. If the person moves furthermore to the South direction, he/she will still see a ceiling above, but this ceiling would then be the First Floor of the "South Block". Again, there is no SRI requirements for the cars under the South Block (Parking under a building). My question is: For SSc7.1: do we need SRI compliance for the students' playground or not?