2. The method of claim 1 , wherein determining a closeness score for a pair of words includes dividing the probability that the words are very close to each other by the probability that the words are near each other.
2. The method of claim 1 , wherein determining a closeness score for a pair of words includes dividing the probability that the words are very close to each other by the probability that the words are near each other. 3. The method of claim 2 , wherein words are determined to be very close to each other if they are less than a small number of words apart; and wherein words are determined to be near each other if they are within a pre-specified number of words of each other.