21.   And, of course, there are all those possible combinations.

22.   And, while outsiders dwelled on possible combinations, many of the drug companies whose stocks hit record highs in recent weeks were not merging but marketing.

23.   A message can also be decoded by trying every possible combination of digits.

24.   A possible combination makes sense, analysts said.

25.   But conjoint analysis for more than a few attributes is unwieldy because the possible combinations mushroom quickly to unmanageable numbers.

26.   But people close to the talks said that the discussions with Deloitte were the only ones involving negotiating teams and an aggressive pursuit of possible combinations at this point.

27.   Derr had also discussed a possible combination with Amoco last summer.

28.   Deloitte was said to have held two meetings of partners this week to discuss concerns about a possible combination.

29.   Enumerating the list of possible combinations of gene patterns is almost like the list of possible combinations in a lottery.

30.   Enter letters from a jumbled word, for instance, and the dictionary will unscramble them into all possible combinations that make words using all the letters.