1.   Among these the Underworld was the great unknown and was therefore the dominant feature of funerary texts from the Middle Kingdom onwards.

2.   Another great unknown is how Americans will react to the reopening of the stock markets.

3.   Beyond the great unknown looms only emptiness, aloneness, oblivion.

4.   Boldon is the brash, frisky youth, the great unknown.

5.   Into the great unknown they go, much like the home runs they hit.

6.   Santa Clarita resident Carolyn Calvo faced the great unknown in her quest for her first massage.

7.   She has thrown her extremely promising career as a leading lady into the great unknown, where fear rules and where high concept is king.

8.   The great unknown in the equation is how ordinary businesses and individuals will act.

9.   The great unknown is whether terrorists will be able to gain access to the smallpox virus and use it as a weapon.

10.   The great unknown this year is whether any significant tax legislation will emerge from Washington, and if it does, how to play it now.