31.   Most speech systems have used variations on these two types of admissible search algorithm.

32.   All three systems use search algorithms based on a dynamic programming algorithm known as the Viterbi algorithm.

33.   Both systems use transition probabilities between syntactically tagged form class pairs to prune the search.

34.   However, because both systems used information just about adjacent words, they were able to make backwards pruning decisions after every word pair.

35.   And the new system uses a domestic CD player, coupled to a decoder.

36.   The coding system used to record the physical nature and condition of items included an element which denoted the type of binding in which they were currently contained.

37.   Although fire-sprinkler systems use drinking water, they do not allow it to flow back into the supply pipes.

38.   And his system uses groundwater, not a river or lake, for its supply.

39.   And, perhaps most importantly, he developed the points system used in NASCAR today.

40.   Another challenge is that traditional cable systems generally use public power.