1.   People scoffed at such reassurances, noting the many unknowns produced thus far during the anthrax threat.

2.   Skidboot is half Queensland blue heeler, the other half unknown.

3.   The epidemiology of HIV transmission is complicated, and among the many unknowns is how networks of sex partners influence transmission rates.

4.   The other unknown is how foreigners will behave.

5.   The other unknown is the Fed.

6.   The one unknown is how the Bulls will respond after such a long layoff.

7.   The one unknown is how the players respond to new coach Darrell Walker and vice versa.

8.   The other unknown is the impact of the tobacco issue.

9.   The one unknown is how the inevitable relocation talk affects the team as the season unwinds.

10.   The one unknown is where to place the transportation hub outside the park.