21.   They are the great unknown of the New Hampshire presidential primary.

22.   What happens next in Haiti is the great unknown.

23.   Who will be making these decisions is still the great unknown.

24.   You expect some trial and pain when setting sail across the great unknown.

25.   But the great unknown is still whether people will pay.

26.   But the market welcomed the news even as some observers described the deal as virtually casting Telecom into a great unknown.

27.   One great unknown, aides say, is how the public will react to the sordid details of the Monica Lewinsky affair.

28.   The great unknown fueling fears of nuclear war is how Pakistan might respond to an Indian attack.

29.   The separatists vow to keep pursuing independence even if they lose, while a separatist victory plunges both Quebec and Canada into a great unknown.

30.   Whether the giant wave will be found is a great unknown.