Here is a pavilion (party tent) with different numbers of side walls.
Of course you can use pavilion 5 only (that with all 4 walls) and remove the unwanted walls,
but for the lazy ones I did that for you:
Pavilion 1 has no walls, pavilion 2 has one wall, pavilion 3 has 2 walls and pavilion 4 has 3 walls.
The second picture shows a row of different pavilions to make a big one. PARTY ON!