At least one of these roost sites had been unoccupied for several months before being appropriated by another bat.
For example, a pairing strategy works in the small game only if the 2-element unoccupied parts of the dangerous winning sets remain pairwise disjoint.
One unoccupied building of this hospital was used as the laboratory for this work.
But in practice, many populations are likely to leave areas unoccupied within their boundaries.
They began to take up other works when unoccupied in their field.
State officials did not even investigate whether the lands designated to ex-soldiers were unoccupied.
The tomb remained unoccupied for an interval after its construction.
Of these, several are not currently used and may remain unoccupied for the foreseeable future.
