29. A non-transitory computer readable storage medium encoded with instructions executable by a processor, the instructions comprising: identifying a propagating attribute associated with a parse item of a plurality of parse items, the plurality of parse items arranged in an ordered data structure; determining a direction of propagation of the propagating attribute within the ordered data structure; and selectively associating the propagating attribute with each parse item of the plurality of parse items located in the direction of propagation within the ordered data structure.
29. A non-transitory computer readable storage medium encoded with instructions executable by a processor, the instructions comprising: identifying a propagating attribute associated with a parse item of a plurality of parse items, the plurality of parse items arranged in an ordered data structure; determining a direction of propagation of the propagating attribute within the ordered data structure; and selectively associating the propagating attribute with each parse item of the plurality of parse items located in the direction of propagation within the ordered data structure. 33. The non-transitory computer readable medium of claim 29 , wherein the instructions further include: receiving text data; normalizing the text data to provide normalized text data; morphologically processing the normalized text data to provide standardized text data; selectively converting at least one phrase of the standardized text data from a first standard to a second standard to provide processed text data; identifying boundary markers in the processed text data to provide the plurality of parse items; and arranging the plurality of parse items in the ordered data structure.