3. The method of claim 1 , further comprising: trimming at least one of the sentence endings by dropping one or more words from the at least one sentence ending.
4. The method of claim 3 , further comprising: generating an inverse document frequency table that includes words common to sentence endings; and where the trimming at least one of the sentence endings includes: comparing the text of the at least one sentence ending to words in the inverse document frequency table, and dropping one or more words from the at least one sentence ending based, at least in part, on a result of the comparison.