1. A method performed by a computing device, the method comprising: creating seed distribution data comprising a seed phrase and associated seed probabilities that the seed phrase corresponds to a plurality of different lexicons having associated meanings, the seed probabilities including at least: a first seed probability assigned to the seed phrase, the first seed probability indicative of a first likelihood that the seed phrase corresponds to a first lexicon associated with a first meaning of the seed phrase, and a second seed probability assigned to the seed phrase, the second seed probability indicative of a second likelihood that the seed phrase corresponds to a second lexicon associated with a second meaning of the seed phrase, the first seed probability different than the second seed probability, the first lexicon different than the second lexicon; and identifying, from a plurality of web documents, a set of lists of phrases that include the seed phrase as well as other phrases; and based at least on the seed probabilities, determining other probabilities that the other phrases correspond to the plurality of different lexicons having the associated meanings.