1. A method for generating characteristic lexical chain, and for synthesizing the update of a lexical chain, the method comprising: receiving a string of text; generating at least one lexical chain from the string of text, wherein the at least one lexical chain comprises at least one noun and at least one adjective; generating at least one of the following: a gradability score and a predication score for the at least one adjective; determining whether the at least one adjective is one of the following: characteristic and non-characteristic, based on, at least in part, at least one of the following: the gradability score and the predication score; updating the at least one lexical chain by removing a non-characteristic adjective from the at least one lexical chain when the non-characteristic adjective appears before at least one of: a characteristic adjective and a noun; and providing the updated at least one lexical chain via a computing device capable of at least one of the following: audibly broadcasting synthesized speech associated with the updated at least one lexical chain, and transmitting over a network data to a user device for at least one of the following: audible broadcast of the synthesized speech and the visual display of text.
5. The method of claim 1 , further comprising leaving the non-characteristic adjective in the at least one lexical chain when the non-characteristic adjective appears after a characteristic adjective.