Thousands can be constituted-of-or-filled-with square kilometres.
Some square miles can be constituted-of-or-filled-with terrain.
A minimum can be constituted-of-or-filled-with some square feet.
An area can be constituted-of-or-filled-with some square mile.
Some square feet can be constituted-of-or-filled-with (laboratory space).
A space can be constituted-of-or-filled-with some square meters.
Some square miles can be constituted-of-or-filled-with wetlands.