12. The computer-readable storage medium of claim 11 , further comprising storing in the memory a number of times a first word of each word pair appears in the source text, a number of times a second word of each word pair appears in the source text, and a number of times the word pair appears in the source text.
11. The computer-readable storage medium of claim 10 , further comprising instructions for generating the database by: receiving a designated source text, the source text comprising a plurality of words; parsing the plurality of words into a plurality of word pairs, each word pair comprising two consecutive words found in the source text; and storing the parsed plurality of word pairs in a database.